4.6 Article

Enhanced Double Metal Cyanide Catalysts for Modulating the Rheological Properties of Poly(propylene carbonate) Polyols by Modifying Carbonate Contents

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 Polymer Science

Highly Active Heterogeneous Double Metal Cyanide Catalysts for Ring-Opening Polymerization of Cyclic Monomers

Chinh-Hoang Tran et al.

Summary: A series of heterogeneous Zn-Co double metal cyanide (DMC) catalysts were investigated for ring-opening polymerization (ROP) of various cyclic monomers. It was found that inexpensive and commonly used organic solvents were effective complexing agents for the preparation of DMC catalysts, which showed high catalytic activity for the ROP of propylene oxide, epsilon-caprolactone, and delta-valerolactone. The chemical structures and compositions of the catalysts were determined using various techniques, and alpha, omega-hydroxyl-functionalized polyether and polyester polyols with high yields and tunable molecular weights were successfully synthesized in the presence of different initiators. Kinetic studies of the ROP of delta-valerolactone were also conducted to confirm the reaction mechanism.

POLYMERS (2022)

Article Chemistry, Applied

Effect of α-, β-, γ-, and δ-dicarbonyl complexing agents on the double metal cyanide-catalyzed ring-opening polymerization of propylene oxide

Chinh Hoang Tran et al.

Summary: Using dicarbonyl compounds as complexing agents for Zn(II)-Co(III) DMC catalysts in the ring-opening polymerization of epoxides can lead to higher yields and lower unsaturation levels in the resulting polyols. The ability to tune the catalytic behavior with these new complexing agents offers great potential for the synthesis of high quality polyols.

CATALYSIS TODAY (2021)

Article Chemistry, Applied

Effect of dicarbonyl complexing agents on double metal cyanide catalysts toward copolymerization of CO2 and propylene oxide

Chinh Hoang Tran et al.

Summary: Functional polycarbonate polyols were synthesized using various Zn(II)-Co(III) DMC catalysts with high catalytic activity, resulting in products with high carbonate content, a wide range of molecular weight, and narrow polydispersity.

CATALYSIS TODAY (2021)

Article Engineering, Chemical

Environmental Performance of Alternative Green Polyol Synthesis Routes: A Proposal for Improvement

Kaccnny Carvalho et al.

Summary: This study verified the environmental effectiveness of potentially less aggressive routes for the synthesis of PPG and compared the environmental performance of different processing routes. The use of CO2 for PPG production was found to have environmental benefits.

PROCESSES (2021)

Article Polymer Science

Copolymerization of CO2, propylene oxide, and itaconic anhydride with double metal cyanide complex catalyst to form crosslinked polypropylene carbonate

Liang Luo et al.

Summary: In this study, a high-activity Zn-Co double metal cyanide complex was synthesized and used to catalyze the ternary polymerization, producing a new class of polypropylene carbonates with excellent performance. The obtained terpolymers demonstrated high molecular weight, superior thermal and mechanical properties through a series of experiments.

E-POLYMERS (2021)

Article Engineering, Environmental

Carbon Dioxide Based Poly(ether carbonate) Polyol in Bi-polyol Mixtures for Rigid Polyurethane Foams

Dong Hyun Lee et al.

JOURNAL OF POLYMERS AND THE ENVIRONMENT (2020)

Article Chemistry, Multidisciplinary

Understanding metal synergy in heterodinuclear catalysts for the copolymerization of CO2 and epoxides

Arron C. Deacy et al.

NATURE CHEMISTRY (2020)

Proceedings Paper Materials Science, Multidisciplinary

Synthesis and characterization of mesoporous titania using a synthetic (Pluronic P123) and a natural (Gum Arabic) templating agent

Unathi Mgwetyana et al.

MATERIALS TODAY-PROCEEDINGS (2018)

Article Materials Science, Ceramics

Synthesis of mesoporous tungsten oxide by template-assisted sol-gel method and its photocatalytic degradation activity

Banafsheh Mirtaheri et al.

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY (2017)

Article Chemistry, Physical

Synthesis and microwave absorption properties of hierarchical Fe micro-sphere assembly by nano-plates

Pingan Yang et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2017)

Article Chemistry, Multidisciplinary

Carbon Dioxide-Based Polyols as Sustainable Feedstock of Thermoplastic Polyurethane for Corrosion-Resistant Metal Coating

Prakash Alagi et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2017)

Article Chemistry, Inorganic & Nuclear

Nanoparticulate TiO2-Supported Double Metal Cyanide Catalyst for the Copolymerization of CO2 with Propylene Oxide

Muhammad Afzal Subhani et al.

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY (2016)

Article Agricultural Engineering

A mathematical model of rheological behavior of novel bio-based isocyanate-terminated polyurethane prepolymers

Ewa Glowinska et al.

INDUSTRIAL CROPS AND PRODUCTS (2014)

Article Chemistry, Multidisciplinary

Effect of polymerization conditions on the polymer properties of CO2-cyclohexene oxide copolymer prepared by double metal cyanide catalyst

Hyung Jin Oh et al.

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY (2013)

Article Chemistry, Multidisciplinary

Hybrid sol-gel double metal cyanide catalysts for the copolymerisation of styrene oxide and CO2

Yvonne Dienes et al.

GREEN CHEMISTRY (2012)

Article Biochemistry & Molecular Biology

Synthesis and Characterization of Polyethylene Glycol Mediated Silver Nanoparticles by the Green Method

Kamyar Shameli et al.

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2012)

Proceedings Paper Engineering, Chemical

Promoting effect of metal promoters on Fe(II)-Zn-based double metal cyanide complex catalysts for biodiesel synthesis

Lingmei Yang et al.

APPLICATION OF CHEMICAL ENGINEERING, PTS 1-3 (2011)

Article Polymer Science

Copolymerization of carbon dioxide and epoxides with a novel effective Zn-Ni double-metal cyanide complex

Shang Chen et al.

JOURNAL OF APPLIED POLYMER SCIENCE (2008)

Article Chemistry, Multidisciplinary

On the formation of aliphatic polycarbonates from epoxides with chromium(III) and aluminum(III) metal-salen complexes

GA Luinstra et al.

CHEMISTRY-A EUROPEAN JOURNAL (2005)

Article Chemistry, Physical

Structure and optical properties of mesoporous tungsten oxide

LG Teoh et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2005)