☆ 4.8 Article

Janus Effect of Lewis Acid Enables One-Step Block Copolymerization of Ethylene Oxide and N-Sulfonyl Aziridine

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2023)

相关参考文献

注意：仅列出部分参考文献，下载原文获取全部文献信息。

Article Chemistry, Applied

Non-silicone elastic coating with fouling resistance and fouling release abilities based on degradable hyperbranched polymer

Ru Xie et al.

Summary: An eco-friendly antifouling coating based on HPCL and a triblock copolymer was developed, showing self-renewal properties and resistance to fouling. The coating exhibited degradation and self-renewal, and was effective in inhibiting marine biofouling.

PROGRESS IN ORGANIC COATINGS (2023)

添加到收藏夹

Article Chemistry, Multidisciplinary

Switchable Polymerization Organocatalysis: From Monomer Mixtures to Block Copolymers

Jiadong Tang et al.

Summary: We have achieved the one-pot production of sequence-controlled block copolymer from mixed monomers using a switchable catalyst. The method allows for chemoselective and efficient polymerization reactions, resulting in a high conversion rate of CO2.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

添加到收藏夹

Article Multidisciplinary Sciences

One-step synthesis of sequence-controlled multiblock polymers with up to 11 segments from monomer mixture

Xiaochao Xia et al.

Summary: In this study, a self-switchable polymerization method using alkali metal carboxylate catalysts is reported for the direct synthesis of multiblock polymers with multiple segments. The method allows the production of polymers with complex sequences and structures, offering potential opportunities for material design.

NATURE COMMUNICATIONS (2022)

添加到收藏夹

Review Chemistry, Multidisciplinary

Heterocycle/Heteroallene Ring-Opening Copolymerization: Selective Catalysis Delivering Alternating Copolymers

Alex J. Plajer et al.

Summary: Heteroatom-containing polymers have potential as sustainable replacements for petrochemicals, offering a wide range of properties for various applications. Catalysed ring-opening copolymerisation (ROCOP) provides a route to create precise new polymer structures, leading to a renaissance in research and commercial products.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

添加到收藏夹

Article Chemistry, Analytical

Influence of Microstructure on the Elution Behavior of Gradient Copolymers in Different Modes of Liquid Interaction Chromatography

Blaz Zdovc et al.

Summary: The influence of microstructure on the chromatographic behavior of gradient copolymers and block copolymers was studied using gradient liquid adsorption chromatography and liquid chromatography at critical conditions. The results indicate that in addition to chemical composition and molar mass, microstructure also plays an important role in the elution behavior of gradient copolymers.

ANALYTICAL CHEMISTRY (2022)

添加到收藏夹

Article Polymer Science

Self-Switchable Polymerization: A Smart Approach to Sequence-Controlled Degradable Copolymers

Chenyang Hu et al.

Summary: Degradable polymers are attractive alternatives for sustainable development. Self-switchable polymerization offers a method for the synthesis of controlled sequence copolymers with improved properties.

MACROMOLECULES (2022)

添加到收藏夹

Review Chemistry, Multidisciplinary

Synergic Heterodinuclear Catalysts for the Ring-Opening Copolymerization (ROCOP) of Epoxides, Carbon Dioxide, and Anhydrides

Wilfred T. Diment et al.

Summary: The development of sustainable plastic materials using sustainable monomers and polymers that can be chemically recycled is a key goal of 21st century chemistry. However, designing efficient catalysts for these processes remains challenging due to issues such as low catalytic activities, high catalyst loading requirements, and the need for costly, toxic cocatalysts.

ACCOUNTS OF CHEMICAL RESEARCH (2022)

添加到收藏夹

Article Chemistry, Multidisciplinary

Multidimensional Control of Repeating Unit/Sequence/Topology for One-Step Synthesis of Block Polymers from Monomer Mixtures

Xiaochao Xia et al.

Summary: The self-switchable alternating copolymerization allows synchronous and thorough adjustment of the chemical structure difference between two blocks of the diblock copolymer, enabling precise synthesis. The reactivity ratio of the comonomers was investigated, establishing a reactivity gradient.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

添加到收藏夹

Article Polymer Science

Anionic Copolymerization of o-Phthalaldehyde with Epoxides: Facile Access to Degradable Polyacetals and Their Copolymers under Ambient Conditions

Naganath Patil et al.

Summary: By adding Lewis acid such as triethylborane (TEB), the copolymerization of o-phthalaldehyde (OPA) with various epoxides has been successfully carried out under ambient conditions, resulting in the formation of polyacetals. The role and effect of TEB, its amount, and the feeding ratio of OPA to epoxides during their copolymerizations were investigated. The successful copolymerization was further extended to the synthesis of polyether-b-polyacetal block copolymers with different structure and properties.

MACROMOLECULES (2022)

添加到收藏夹

Article Chemistry, Multidisciplinary

Chiral diboranes as catalysts for the stereoselective organopolymerization of epoxides

Ayla Sirin-Sariaslan et al.

Summary: The stereoselective polymerization of epoxides can be achieved with organocatalysts, resulting in well-defined and high molar mass polyethers. This method also allows the incorporation of stereocontrolled polyether blocks in complex polymer architectures.

CHEMICAL SCIENCE (2022)

添加到收藏夹

Article Chemistry, Analytical

Influence of Microstructure on the Elution Behavior of Gradient Copolymers in Different Modes of Liquid Interaction Chromatography

Blaz Zdovc et al.

Summary: This study investigates the influence of microstructure on the chromatographic behavior of copolymers. The results show that the elution volume of copolymers increases with the increasing strength of the gradient. This study highlights the importance of considering the effect of microstructure in addition to the chemical composition and molar mass when analyzing copolymers using liquid interaction chromatography methods.

ANALYTICAL CHEMISTRY (2022)

添加到收藏夹

Article Chemistry, Multidisciplinary

Polyurethanes from Direct Organocatalytic Copolymerization of p-Tosyl Isocyanate with Epoxides

Mingchen Jia et al.

Summary: The direct copolymerization of p-tosyl isocyanate with epoxides using onium salts and trialkylborane as initiators has been successfully demonstrated, producing polyurethanes without side products. This study holds the potential for developing new materials with unprecedented properties through terpolymerization with other oxygenated monomers and CO2.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

添加到收藏夹

Review Polymer Science

Recent advances on the structure-properties relationship of multiblock copolymers

Guilhem P. Baeza

Summary: Multiblock copolymers are important materials with significant practical and fundamental implications, playing crucial roles in both industrial applications and polymer science. By tailoring their morphology, a better understanding of the relationship between polymer system structure and properties can be achieved.

JOURNAL OF POLYMER SCIENCE (2021)

添加到收藏夹

Article Polymer Science

Temperature Variation Enables the Design of Biobased Block Copolymers via One-Step Anionic Copolymerization

Jennifer Bareuther et al.

Summary: The one-pot anionic block copolymerization approach controlled by temperature is applicable to other terpene-diene monomers. Temperature control enables the formation of polymyrcene blocks, with transmission electron microscopy and small-angle X-ray scattering measurements confirming the presence of clearly microphase-separated, long range-ordered domains in the block copolymers.

MACROMOLECULAR RAPID COMMUNICATIONS (2021)

添加到收藏夹

Article Polymer Science

Simple and Precision Approach to Polythioimidocarbonates and Hybrid Block Copolymer Derivatives

Tao Lai et al.

Summary: The study discovered a novel copolymerization method for synthesizing a nearly unexplored sulfur-containing polymer PTC, controlled by a simple catalyst resulting in high quality products. The method also demonstrates selectivity towards different reactants, offering a new strategy for preparing tailor-made polymers.

MACROMOLECULES (2021)

添加到收藏夹

Article Polymer Science

Alternating Copolymerization of Epoxides with Isothiocyanates

Chao Chen et al.

Summary: The ring-opening copolymerization of epoxides with isothiocyanates was explored for the first time. Various epoxides were copolymerized with aromatic and aliphatic ITCs, and the effects of different phosphazene bases, temperatures, and Lewis acids on the copolymerization were investigated. The thermal properties of the obtained copolymers were analyzed.

MACROMOLECULES (2021)

添加到收藏夹

Article Polymer Science

Highly Selective and Productive Synthesis of a Carbon Dioxide-Based Copolymer upon Zwitterionic Growth

Ying Wang et al.

Summary: This study presents a novel zwitterionic approach for the selective copolymerization of CO2 and PO to produce poly(propylene carbonate) with broad applications. By using specific catalysts and adjusting the Lewis acid-base pair, efficient synthesis is achieved while controlling the selectivity, structure, and properties of the polymer.

MACROMOLECULES (2021)

添加到收藏夹

Article Multidisciplinary Sciences

Diblock dialternating terpolymers by one-step/one-pot highly selective organocatalytic multimonomer polymerization

Jiaxi Xu et al.

Summary: The study demonstrates that the one-pot ring-opening terpolymerization using tert-butylimino-tris(dimethylamino)phosphorene as a catalyst can produce perfectly alternating diblock terpolymers with highly controllable molecular weights and narrow molecular weight distributions.

NATURE COMMUNICATIONS (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

Record Productivity and Unprecedented Molecular Weight for Ring-Opening Copolymerization of Epoxides and Cyclic Anhydrides Enabled by Organoboron Catalysts

Rui Xie et al.

Summary: A metal-free, highly active, and high thermoresistance system for the ring-opening copolymerization (ROCOP) of epoxides with cyclic anhydrides to prepare polyesters has been developed. The catalysts can endure high reaction temperatures without side reactions, leading to high molecular weight polyesters with low polydispersity. This system achieved an unprecedented efficiency and turnover number, supported by kinetic studies, crystal structure analysis, B-11 NMR spectra, and DFT calculations.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

添加到收藏夹

Review Chemistry, Multidisciplinary

Sequence Control from Mixtures: Switchable Polymerization Catalysis and Future Materials Applications

Arron C. Deacy et al.

Summary: The article discusses an efficient and broadly applicable method for producing copolymers using switchable polymerization catalysis, which utilizes a single catalyst switched between different catalytic cycles to prepare block sequence selective copolymers from monomer mixtures. It presents the principles of this catalysis, catalyst design criteria, selectivity and structural copolymer characterization tools, as well as the properties of resulting copolymers.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

添加到收藏夹

Article Polymer Science

Constructing ABA- and ABCBA-Type Multiblock Copolyesters with Structural Diversity by Organocatalytic Self-Switchable Copolymerization

Chen Li et al.

Summary: The self-switchable pathway for the copolymerization of epoxides, cyclic anhydrides, and cyclic esters has been shown to be effective in producing well-defined copolymers with structural diversity and functionality. Through optimization of the organocatalyst and kinetic studies, a sequence-defined triblock copolymer was successfully synthesized, demonstrating excellent chemoselectivity in terpolymerization. The newly established pathway showed broad monomer adaptability and allowed for the one-step synthesis of complex pentablock copolyesters.

MACROMOLECULES (2021)

添加到收藏夹

Review Polymer Science

Chemoselective Polymerizations

Ning Zhu et al.

Summary: Chemoselective polymerizations present a significant challenge in advanced polymer precision synthesis, with issues such as ill-defined products and low efficiency in traditional methods. Significant progress has been made in chemoselective polymerizations through the development of novel catalysis and microflow technology.

PROGRESS IN POLYMER SCIENCE (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

Surfactant-Emulating Amphiphilic Polycarbonates and Other Functional Polycarbonates through Metal-Free Copolymerization of CO2 with Ethylene Oxide

Mingchen Jia et al.

Summary: Three types of copolymers with different carbonate content were prepared through copolymerization of ethylene oxide with CO2 under metal-free conditions using onium salts as initiators. The copolymerization process also allowed for the introduction of functional groups along the backbone of the copolymers and the generation of amphiphilic triblocks with different hydrophilic-hydrophobic balance. The properties of the copolymers were characterized by various analytical methods and their degradation behavior was investigated under different conditions.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2021)

添加到收藏夹

Article Polymer Science

Unprecedentedly high active organocatalysts for the copolymerization of carbonyl sulfide and propylene oxide: steric hindrance effect of tertiary amines

Jiraya Kiriratnikom et al.

Summary: The study explores the steric effect of tertiary amines on the copolymerization of COS with PO, revealing a highly efficient organocatalytic method and successful synthesis of polymers with high molecular weights and regioregularity.

POLYMER CHEMISTRY (2021)

添加到收藏夹

Review Polymer Science

Organo-catalyzed/initiated ring opening co-polymerization of cyclic anhydrides and epoxides: an emerging story

Dmytro Ryzhakov et al.

Summary: Polyester synthesis through eco-friendly methods is a major challenge today, with metal complexes playing a crucial role as catalysts and initiators in the process. The use of metal-free organo-catalysts/initiators remains to be explored, with interesting developments reported over the past five years. This area of organo-catalyzed/initiated processes is still in its infancy but holds great potential for further advancements.

POLYMER CHEMISTRY (2021)

添加到收藏夹

Article Polymer Science

Solvent and catalyst-free modification of hyperbranched polyethyleneimines by ring-opening-addition or ring-opening-polymerization of N-sulfonyl aziridines

Zhunxuan Li et al.

Summary: An efficient synthetic methodology was developed for the modification of hyperbranched polyethyleneimines (PEI) using N-sulfonyl aziridines, resulting in materials with unique fluorescence properties and the ability to remove hazardous metals.

POLYMER CHEMISTRY (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

Scalable Bifunctional Organoboron Catalysts for Copolymerization of CO2 and Epoxides with Unprecedented Efficiency

Guan-Wen Yang et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

添加到收藏夹

Article Polymer Science

All-Polycarbonate Thermoplastic Elastomers Based on Triblock Copolymers Derived from Triethylborane-Mediated Sequential Copolymerization of CO2 with Various Epoxides

Mingchen Jia et al.

MACROMOLECULES (2020)

添加到收藏夹

Article Polymer Science

Tapered Multiblock Copolymers Based on Farnesene and Styrene: Impact of Biobased Polydiene Architectures on Material Properties

Christian Wahlen et al.

MACROMOLECULES (2020)

添加到收藏夹

Article Chemistry, Multidisciplinary

Metal-Free Approach for a One-Pot Construction of Biodegradable Block Copolymers from Epoxides, Phthalic Anhydride, and CO2

Shuxian Ye et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2020)

添加到收藏夹

Article Polymer Science

N-heterocyclic olefins catalyzed ring-opening polymerization of N-tosyl aziridines

Li Zhou et al.

EUROPEAN POLYMER JOURNAL (2020)

添加到收藏夹

Article Polymer Science

Tapered Multiblock Copolymers Based on Isoprene and 4-Methylstyrene: Influence of the Tapered Interface on the Self-Assembly and Thermomechanical Properties

Eftyxis Galanos et al.

MACROMOLECULES (2019)

添加到收藏夹

Review Chemistry, Organic

On the Basicity of Organic Bases in Different Media

Sofja Tshepelevitsh et al.

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY (2019)

添加到收藏夹

Article Polymer Science

Progress in metal-free cooperative catalysis for the ring-opening copolymerization of cyclic anhydrides and epoxides

Sreenath Pappuru et al.

EUROPEAN POLYMER JOURNAL (2019)

添加到收藏夹

Review Chemistry, Multidisciplinary

Biased Lewis Pairs: A General Catalytic Approach to Ether-Ester Block Copolymers with Unlimited Ordering of Sequences

Shan Liu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

添加到收藏夹

Article Polymer Science

Chemoselective Polymerization of Epoxides from Carboxylic Acids: Direct Access to Esterified Polyethers and Biodegradable Polyurethanes

Ye Chen et al.

ACS MACRO LETTERS (2019)

添加到收藏夹

Article Polymer Science

Gopolymerization of Isoprene with p-Alkylstyrene Monomers: Disparate Reactivity Ratios and the Shape of the Gradient

Philipp von Tiedemann et al.

MACROMOLECULES (2019)

添加到收藏夹

Article Polymer Science

Triethyl borane-regulated selective production of polycarbonates and cyclic carbonates for the coupling reaction of CO2 with epoxides

Zheng Chen et al.

POLYMER CHEMISTRY (2019)

添加到收藏夹

Article Chemistry, Multidisciplinary

Organic Lewis pairs for selective copolymerization of epoxides with anhydrides to access sequence-controlled block copolymers

He-Yuan Ji et al.

GREEN CHEMISTRY (2019)

添加到收藏夹

Article Nanoscience & Nanotechnology

Betulin-Constituted Multiblock Amphiphiles for Broad-Spectrum Protein Resistance

Ye Chen et al.

ACS APPLIED MATERIALS & INTERFACES (2018)

添加到收藏夹

Article Polymer Science

Highly Active Organic Lewis Pairs for the Copolymerization of Epoxides with Cyclic Anhydrides: Metal-Free Access to Well-Defined Aliphatic Polyesters

Lan-Fang Hu et al.

MACROMOLECULES (2018)

添加到收藏夹

Article Polymer Science

Theoretical Mechanistic Investigation into Metal-Free Alternating Copolymerization of CO2 and Epoxides: The Key Role of Triethylborane

Dan-Dan Zhang et al.

MACROMOLECULES (2018)

添加到收藏夹

Article Chemistry, Physical

A mobile precursor determines protein resistance on nanostructured surfaces

Kang Wang et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2018)

添加到收藏夹

Article Polymer Science

Anionic Copolymerization Enables the Scalable Synthesis of Alternating (AB)n Multiblock Copolymers with High Molecular Weight in n/2 Steps

Eduard Grune et al.

ACS MACRO LETTERS (2018)

添加到收藏夹

Article Chemistry, Multidisciplinary

Metal-Free Route to Precise Synthesis of Poly(propylene oxide) and Its Blocks with High Activity

Cheng-Jian Zhang et al.

CHEMSUSCHEM (2018)

添加到收藏夹

Article Chemistry, Multidisciplinary

Fast Access to Amphiphilic Multiblock Architectures by the Anionic Copolymerization of Aziridines and Ethylene Oxide

Tassilo Gleede et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2018)

添加到收藏夹

Article Polymer Science

High Efficiency Organic Lewis Pair Catalyst for Ring-Opening Polymerization of Epoxides with Chemoselectivity

Ye Chen et al.

MACROMOLECULES (2018)

添加到收藏夹

Article Chemistry, Multidisciplinary

Perfectly Alternating and Regioselective Copolymerization of Carbonyl Sulfide and Epoxides by Metal-Free Lewis Pairs

Jia-Liang Yang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2017)

添加到收藏夹

Article Chemistry, Multidisciplinary

The organocatalytic ring-opening polymerization of N-tosyl aziridines by an N-heterocyclic carbene

Camille Bakkali-Hassani et al.

CHEMICAL COMMUNICATIONS (2016)

添加到收藏夹

Review Chemistry, Multidisciplinary

Ring-Opening Copolymerization of Epoxides and Cyclic Anhydrides with Discrete Metal Complexes: Structure-Property Relationships

Julie M. Longo et al.

CHEMICAL REVIEWS (2016)

添加到收藏夹

Article Chemistry, Multidisciplinary

Metal-Free Alternating Copolymerization of CO2 with Epoxides: Fulfilling Green Synthesis and Activity

Dongyue Zhang et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2016)

添加到收藏夹

Review Polymer Science

Antibiofouling polymer interfaces: poly(ethylene glycol) and other promising candidates

Sean Lowe et al.

POLYMER CHEMISTRY (2015)

添加到收藏夹

Article Nanoscience & Nanotechnology

Revealing Amphiphilic Nanodornains of Anti-Biofouling Polymer Coatings

Carlo A. Amadei et al.

ACS APPLIED MATERIALS & INTERFACES (2014)

添加到收藏夹

Article Polymer Science

Aziridine Termination of Living Anionic Polymerization

Laura Thomi et al.

MACROMOLECULAR RAPID COMMUNICATIONS (2014)

添加到收藏夹

Review Multidisciplinary Sciences

Sequence-Controlled Polymers

Jean-Francois Lutz et al.

SCIENCE (2013)

添加到收藏夹

Review Polymer Science

Sequence-controlled polymerizations: the next Holy Grail in polymer science?

Jean-Francois Lutz

POLYMER CHEMISTRY (2010)

添加到收藏夹

Article Chemistry, Multidisciplinary

Pre-rate-determining selectivity in the terpolymerization of epoxides, cyclic anhydrides, and CO2: A one-step route to diblock copolymers

Ryan C. Jeske et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2008)

添加到收藏夹

© Peeref 2019-2024. All rights reserved.