Related references
Note: Only part of the references are listed.
Article
Polymer Science
Huseyin Cem Kiliclar et al.
Summary: This work describes the use of photoinduced thiol-epoxy click reaction for functionalization, chain-extension, grafting, and cross-linking of polymers prepared by atom transfer radical polymerization using Tx-DBU as a photo base generator. The study shows that the use of photo base generators can be extended to the synthesis of various complex macromolecular structures through post modification processes.
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2023)
Article
Polymer Science
Valentina Bellotti et al.
Summary: Retrieving starting monomers from polymers synthesized by reversible deactivation radical polymerization has been proven effective in increasing recyclability and enabling industrial implementation. A novel method involving the use of Eosin Y under light irradiation has been discovered to trigger faster depolymerization even at lower temperatures. The activation of a macroCTA by Eosin Y results in accelerated macroradical generation, significantly improving current depolymerization approaches.
Article
Polymer Science
Wiktoria Tomal et al.
Summary: This article reports a novel visible light induced 3D printing system. By using a combination of dimanganese decacarbonyl and structurally diverse organic halides, high resolution and short printing time can be achieved. The experimental results confirm the potential of this 3D system for various applications.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Zhiheng Zhang et al.
Summary: In this study, RAFT agents were incorporated into resin formulations to allow for visible light-mediated 3D printing of materials with self-healing capabilities. The self-healing process is based on the reactivation of RAFT agent embedded in the thermosets under UV light, enabling reformation of the polymeric network. Resins containing RAFT agents enable 3D printing of thermosets with self-healing properties, expanding the potential applications in various fields.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Polymer Science
Ersen Yilmaz
Summary: In this study, nonmiscible polyvinyl chloride (PVC) and polymethyl methacrylate (PMMA) polymers were made miscible by using MA-St-MMA terpolymer as a compatibilizer. The addition of the compatibilizer led to a single glass transition temperature (Tg) for the mixture and improved impact toughness.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Huseyin Cem Kiliclar et al.
Summary: This study presents a novel visible light induced step-growth polymerization mechanism and demonstrates the potential for grafting onto polymers containing epoxide at their side chains. By changing the molar ratios of the monomers, higher molecular weight polymers can be obtained, showing the effectiveness of the chain-growth condensation polymerization mechanism.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Polymer Science
Michael R. Martinez et al.
Summary: In this study, a poly(n-butyl methacrylate) macroinitiator was depolymerized, and high concentrations of monomer were successfully recovered. This method achieved selective monomer recovery through rotary distillation, while also discovering the possibility of alkyl halide decomposition leading to reduced initiation efficiency and increased thermal stability of the polymer.
Review
Chemistry, Multidisciplinary
Sylwia Dworakowska et al.
Summary: Reversible-deactivation radical polymerizations (RDRPs) have revolutionized synthetic polymer chemistry. Atom transfer radical polymerization (ATRP) has evolved beyond traditional polymer field, enabling the synthesis of organic-inorganic hybrids, bioconjugates, and environmentally relevant polymeric materials.
Article
Chemistry, Multidisciplinary
Hyun Suk Wang et al.
Summary: Researchers reported an efficient, catalyst-free depolymerization method for polymers made by reversible addition-fragmentation chain transfer (RAFT) polymerization, with up to 92% yield. Their approach exploited the high end-group fidelity of RAFT polymers to generate chain-end radicals triggering rapid unzipping, enabling reconstruction of linear polymers or creation of new insoluble gels.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Engineering, Environmental
Zipeng Liu et al.
Summary: Detailed knowledge about the flow of polymers in human activities and their release into the environment is crucial for effective plastic management. This study modeled the flows of five polymers and assessed their release pathways and emissions into the environment using probabilistic material flow analysis (PMFA). The results showed that the amount of polymers released into the environment is much smaller than previously assumed, which is more realistic for countries with well-functioning waste treatment systems.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Polymer Science
John B. Garrison et al.
Summary: Polymeric materials with all-carbon backbones are widely used in modern society due to their low cost, high strength, and exceptional physical properties. However, the relative chemical inertness of the carbon-carbon bonds in their main chains hinders their degradation. In this study, a photocatalytic strategy is proposed to cleave the carbon-based polymer backbones. By incorporating a small amount of a redox-active comonomer, the polymer molecular weight can be significantly reduced upon exposure to light. This approach enables the degradation of polymers with all-carbon backbones at ambient temperature without the need for metal catalysts.
Article
Polymer Science
Michael R. Martinez et al.
Summary: Polymer recycling is gaining increasing attention in the context of a circular economy. This study reports the depolymerization of poly(methyl methacrylate) (PMMA) and poly(n-butyl methacrylate) (PBMA) through controlled radical polymerizations mediated by iron chloride salts and iron powder. The most effective depolymerization was achieved using zerovalent Fe0 as a supplemental activator and reducing agent.
Review
Chemistry, Multidisciplinary
Michael R. Martinez et al.
Summary: Reversible deactivation radical polymerization (RDRP) provides unprecedented control over polymer composition, size, functionality, and topology. This review outlines the progress in the synthesis of degradable polymers designed by RDRP, organized by topology and synthetic route. Recent progress in the depolymerization of polymers using RDRP mechanisms is highlighted and critically discussed.
Article
Nanoscience & Nanotechnology
Guiguang Qi et al.
Summary: This research presents the design and study of an ordered-porous-array polymethyl methacrylate film with excellent radiative cooling properties. The film achieves high emissivity and good solar reflectance, leading to significant reduction in surface temperature. The fabrication process is low-cost and suitable for large-scale production.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Polymer Science
James B. Young et al.
Summary: Controlled radical polymerization techniques allow for the synthesis of polymers with specific molecular weights and architectures. In this study, the role of light in triggering thermal depolymerization of polymers synthesized through reversible-addition-fragmentation chain-transfer (RAFT) polymerization was investigated. By targeting specific electronic transitions, the depolymerization efficiency was enhanced.
Review
Polymer Science
Ming Yuan et al.
Summary: This article reviews the application and the relationship between the physical properties and molecular weight of PMMA, as well as different methods and mechanisms for preparing high molecular weight PMMA.
Article
Chemistry, Multidisciplinary
Alafate Adili et al.
Summary: Visible light-mediated direct decarboxylation is a versatile technique for the synthesis of functional materials with tailored compositions and properties. This process allows for the generation of carbon-centered radicals in polymer chains without the need for preactivation of acid groups. It can be used to obtain challenging copolymers and trigger degradation of polymer backbones.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Environmental Sciences
Pedro Manuel et al.
Summary: Plastic production and the presence of plastic particles in the environment have been increasing in the past 30 years. This study found that polymethylmethacrylate (PMMA) nanoparticles had a greater impact on zebrafish, resulting in higher mortality and pericardial edema compared to polystyrene (PS) nanoparticles, although they had less effect on swimming behavior. PS nanoparticles significantly altered biochemical endpoints, while PMMA nanoparticles caused greater peroxidative damage even at lower concentrations. The integrated biomarker response index confirmed that PS nanoparticles had a greater impact on zebrafish biochemistry.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Scott W. Spring et al.
Summary: Creating strong and tough plastics from sustainable and biorenewable resources is a significant challenge. In this study, we synthesized a thermoplastic material, poly(2,3-dihydrofuran) (PDHF), using a metal-free cationic polymerization process. PDHF exhibited high tensile strength, toughness, optical clarity, and barrier properties, making it suitable for various applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Polymer Science
Hyun Suk Wang et al.
Summary: This study successfully achieved efficient depolymerization of various poly(methyl methacrylate) materials made by reversible addition-fragmentation chain-transfer polymerization using different solvents and end groups, selectively regenerating pure heat-sensitive monomers under mild conditions.
Article
Polymer Science
Zeynep Arslan et al.
Summary: In recent years, there has been significant progress in photoinduced systems, offering opportunities for green chemistry and control over reaction medium. While most research has focused on polymerization methods, the depolymerization of synthesized polymers using photochemical means has been rarely investigated. This study presents a comprehensive investigation of visible light-induced depolymerization system for poly(methyl methacrylate) using a dimanganese decacarbonyl (Mn-2(CO)(10)) catalyst. The approach offers ambient temperature for the photodepolymerization process, which has great potential for further research in environmentally focused fields.
DESIGNED MONOMERS AND POLYMERS
(2022)
Article
Chemistry, Multidisciplinary
Hiroshi Makino et al.
Summary: Alkenylboronate units were introduced into poly(methyl methacrylate) as trigger sites for backbone degradation. The degradation was triggered through the complexation of a fluoride anion to the boron pendant and subsequent activation by a manganese salt, resulting in the generation of a main-chain carbon radical and β-scission in an adjacent methacrylate unit. The addition of catechol was required, and chelate coordination to the Mn center was crucial for the degradation.
CHEMICAL COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
James J. Turner et al.
Summary: The purpose of this Tutorial Review is to outline the fundamental photochemistry of metal carbonyls and demonstrate the advancements in technology that have enhanced our understanding of complex mechanisms. The review recalls important early experiments that provide the basis for current research, focusing on binary carbonyls and selected substituted metal carbonyls. Recent applications are illustrated to support each stage of the discussion. The review covers the detection of photochemical intermediates in glass and matrices, gas phase, and solution. It also examines the underlying theory and briefly addresses applications to the characterization and behavior of complexes with labile ligands, as well as principles and examples of photocatalysis.
CHEMICAL SOCIETY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Kenny Lee et al.
Summary: RAFT-mediated 3D printing with a photoinitiator allows for rapid curing of resins and high printing rates. By incorporating low concentrations of divinyl comonomers into the initial resins, materials containing thiocarbonylthio groups can be produced for diverse applications. Additionally, the inclusion of RAFT agents improves printing resolution and allows for controlled post-printing transformations on object surfaces.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Polymer Science
Huseyin Cem Kiliclar et al.
Summary: A new visible light induced step-growth polymerization of dibromoxylene and diols using dimanganese decacarbonyl and diphenyliodonium salt is described, resulting in the formation of polyether-based block copolymers. The polymerization proceeds through a substitution reaction between dixylenium cations formed upon visible light irradiation in the presence of dimanganese decacarbonyl and diphenyl iodonium salt, with halide groups at chain ends allowing for subsequent free radical and free radical promoted cationic reactions.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Polymer Science
Taichi Kimura et al.
Summary: In this study, switching degradation of vinyl polymers with a carbon-carbon bonded backbone was achieved by introducing methyl alpha-chloroacrylate as the comonomer in the radical polymerization of methyl methacrylate. A metal catalyst activated an in-chain trigger, leading to gradual decrease in molecular weight of the polymer over time. The switching feature was confirmed through control experiments.
Review
Chemistry, Applied
Ramen Jamatia et al.
Summary: Manganese as a novel visible-light-induced catalyst shows great promise in terms of economic sustainability and applicability, leading to significant advancements in organic, polymer, and materials chemistry fields in recent years. Through manganese-catalyzed reactions, late-stage functionalization of valuable compounds and natural products can be realized, which is important for the development of medicinal and pharmaceutical chemistry.
ADVANCED SYNTHESIS & CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Suong T. Nguyen et al.
Summary: This study introduces a catalytic method for depolymerization of commercial phenoxy resin and high molecular weight hydroxylated polyolefin derivatives through light-driven C-C bond cleavage, producing isolable product mixtures that can be diversified into polymer monomers. The hydroxyl group not only controls depolymerization, but also modulates the thermomechanical properties of the materials, offering a new approach for polymer recycling and development of degradable-by-design polyolefin materials.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Polymer Science
Michael R. Martinez et al.
Summary: This study investigated the catalyzed depolymerization of a Cl-capped poly(poly(dimethylsiloxane) methacrylate) polymer mediated by an atom transfer radical polymerization catalyst at 170 degrees C. The depolymerization yield, rate, and selectivity were improved by increasing the ratio of [TPMA]/[CuCl2]. Electron transfer from the ligand contributed to the Cu(I) activator regeneration at high temperature, as proven by ultraviolet-visible spectroscopy.
Article
Polymer Science
Jacopo De Tommaso et al.
Summary: The recycling of poly(methyl methacrylate) (PMMA) waste presents significant economic risks, but different scenarios and quality requirements can lead to varying returns and feasibility. Capital investment and product quality are the primary factors affecting profitability. Companies should aim for the highest quality regenerated product in their recycling efforts for long-term success.
Article
Chemistry, Multidisciplinary
Huseyin Cem Kiliclar et al.
Summary: A novel visible light induced step-growth polymerization for forming poly(phenylene methylene) was developed, with the effect of different nucleophilic aromatic molecules on the polymerization investigated. The combination of step-growth polymerization with conventional free radical and free radical promoted cationic polymerizations through photoinduced chain-end activation was successfully demonstrated, resulting in highly fluorescent fibers of block copolymers. This versatile photoinduced step-growth polymerization process opens up a new pathway for a new generation of polycondensates and their combination with chain polymers that cannot be obtained by conventional methods.
CHEMICAL COMMUNICATIONS
(2021)
Review
Polymer Science
Gorkem Yilmaz et al.
PROGRESS IN POLYMER SCIENCE
(2020)
Article
Polymer Science
Yangyang Xu et al.
EUROPEAN POLYMER JOURNAL
(2020)
Review
Polymer Science
Muhammad Sohail Zafar
Article
Multidisciplinary Sciences
Md Alim et al.
Article
Polymer Science
Mehmet Atilta Tasdelen et al.
Article
Polymer Science
Cansu Aydogan et al.
MACROMOLECULAR RAPID COMMUNICATIONS
(2019)
Article
Chemistry, Applied
Erdem Sari et al.
PROGRESS IN ORGANIC COATINGS
(2019)
Article
Polymer Science
Yuki Sano et al.
EUROPEAN POLYMER JOURNAL
(2019)
Article
Polymer Science
Busra Nakipoglu et al.
Article
Polymer Science
Michael B. Sims et al.
Review
Polymer Science
Gorkem Yilmaz et al.
Article
Chemistry, Multidisciplinary
Erdem Sari et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Engineering, Electrical & Electronic
Daniel J. Carbaugh et al.
SEMICONDUCTOR SCIENCE AND TECHNOLOGY
(2016)
Article
Chemistry, Multidisciplinary
Danielle J. Lloyd et al.
CHEMICAL COMMUNICATIONS
(2016)
Review
Polymer Science
Gorkem Yilmaz et al.
JOURNAL OF PHOTOPOLYMER SCIENCE AND TECHNOLOGY
(2016)
Review
Polymer Science
Mustafa Ciftci et al.
POLYMER INTERNATIONAL
(2016)
Article
Polymer Science
Hao Sun et al.
Review
Polymer Science
Celine Dietlin et al.
Review
Polymer Science
Umar Ali et al.
Review
Polymer Science
Pu Xiao et al.
PROGRESS IN POLYMER SCIENCE
(2015)
Article
Engineering, Environmental
Yasunori Kikuchi et al.
INTERNATIONAL JOURNAL OF LIFE CYCLE ASSESSMENT
(2014)
Article
Polymer Science
Mustafa Ciftci et al.
Article
Chemistry, Applied
K. M. Nasir et al.
PIGMENT & RESIN TECHNOLOGY
(2013)
Review
Chemistry, Multidisciplinary
Clara Brieke et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2012)
Article
Polymer Science
I. Degirmenci et al.
Review
Chemistry, Multidisciplinary
K Matyjaszewski et al.
