A Quantum-Chemical Approach to Understanding Reversible Addition Fragmentation Chain-Transfer Polymerization

2004 ◽  
Vol 57 (12) ◽  
pp. 1125 ◽  
Author(s):  
Michelle L. Coote
Keyword(s):  
Methyl Acrylate ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Polymerization Process ◽  
Test Case ◽  
Computational Quantum Chemistry ◽  
Reversible Addition ◽  
Rate Retardation ◽  
Fragmentation Reactions ◽  
Chain Transfer Polymerization

This article highlights some of the recent contributions that computational quantum chemistry has made to the understanding of the reversible addition fragmentation chain transfer (RAFT) polymerization process. These include recent studies of rate retardation in cumyl dithiobenzoate mediated polymerization of styrene and methyl acrylate and the xanthate mediated polymerization of vinyl acetate, and studies of the effects of substituents on the addition and fragmentation reactions in prototypical systems and polymer-related systems. The accuracy and applicability of theoretical procedures for studying free-radical polymerization are also discussed, and the methodology is evaluated using the homopropagation rate coefficient of methyl acrylate as a test case. The review concludes with a brief discussion of possible future developments in the field.

scholarly journals Reversible addition fragmentation chain transfer polymerization - RAFT

2004 ◽  
Vol 58 (11) ◽  
pp. 514-520
Author(s):  
Milena Avramovic ◽  
Lynne Katsikas ◽  
Branko Dunjic ◽  
Ivanka Popovic
Keyword(s):  
Radical Polymerization ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
General Structure ◽  
Controlled Radical Polymerization ◽  
Molecular Structures ◽  
Reversible Addition ◽  
Chain Transfer Polymerization

The fundamentals of controlled radical polymerization are presented in this review. The paper focuses on reversible addition fragmentation chain transfer (RAFT) polymerization. The mechanism and specifics of this type of polymerization are discussed, as are the possibilities of synthesizing complex macro-molecular structures. The synthesis and properties of RAFT agents, of the general structure Z-C(=S)-S-R, are presented.

PET-RAFT polymerization catalyzed by cadmium selenide quantum dots (QDs): Grafting-from QDs photocatalysts to make polymer nanocomposites

2020 ◽  
Vol 11 (5) ◽  
pp. 1018-1024 ◽  
Author(s):  
Yifan Zhu ◽  
Eilaf Egap
Keyword(s):  
Quantum Dots ◽  
Cadmium Selenide ◽  
Polymer Nanocomposites ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Cdse Qds ◽  
Reversible Addition ◽  
Cadmium Selenide Quantum Dots ◽  
Grafting From ◽  
Chain Transfer Polymerization

We report herein the first example of light-controlled radical reversible addition–fragmentation chain transfer polymerization facilitated by cadmium selenide quantum dots and the grafting-from CdSe QDs to create polymer-QDs nanocomposites.

Controlled/Living Radical Polymerization of Semifluorinated (Meth)acrylates

Synlett ◽  
2018 ◽  
Vol 29 (12) ◽  
pp. 1543-1551 ◽  
Author(s):  
Mao Chen ◽  
Honghong Gong ◽  
Yu Gu
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Living Radical Polymerization ◽  
Atom Transfer ◽  
Reversible Addition ◽  
Controlled Living Radical Polymerization ◽  
Chain Transfer Polymerization ◽  
Semifluorinated Polymers

Fluorinated polymers are important materials for applications in many areas. This article summarizes the development of controlled/living radical polymerization (CRP) of semifluorinated (meth)acrylates, and briefly introduces their reaction mechanisms. While the classical CRP such as atom transfer radical polymerization (ATRP), reversible addition-fragmentation chain transfer (RAFT) polymerization and nitroxide-mediated radical polymerization (NMP) have promoted the preparation of semifluorinated polymers with tailor-designed architectures, recent development of photo-CRP has led to unprecedented accuracy and monomer scope. We expect that synthetic advances will facilitate the engineering of advanced fluorinated materials with unique properties.1 Introduction2 Atom Transfer Radical Polymerization3 Reversible Addition-Fragmentation Chain Transfer Polymerization4 Nitroxide-Mediated Radical Polymerization5 Photo-CRP Mediated with Metal Complexes6 Metal-free Photo-CRP7 Conclusion

Ubiquitous Nature of Rate Retardation in Reversible Addition–Fragmentation Chain Transfer Polymerization

2021 ◽  
Author(s):  
Kate G. E. Bradford ◽  
Leilah M. Petit ◽  
Richard Whitfield ◽  
Athina Anastasaki ◽  
Christopher Barner-Kowollik ◽  
...  
Keyword(s):  
Chain Transfer ◽  
Reversible Addition ◽  
Rate Retardation ◽  
Chain Transfer Polymerization

Using Reversible Addition-Fragmentation Chain Transfer Polymerization to Synthesize Well-Defined Polymer

2013 ◽  
Vol 781-784 ◽  
pp. 415-418
Author(s):  
Shou Juan Bian ◽  
Ying Juan Fu ◽  
Meng Hua Qin
Keyword(s):  
Molecular Weight ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Reaction Conditions ◽  
Reversible Addition ◽  
Complex Architectures ◽  
Versatile Tool ◽  
Green Polymers ◽  
Controlled Structure ◽  
Chain Transfer Polymerization

As an effective and versatile tool for production of functional polymer, RAFT polymerization has been successfully applied to the polymerization of block copolymers and other polymers of complex architectures with precisely controlled structure, molecular weight, and polydispersity. It has the ability to control polymerization of most monomers and has fine compatibility with reaction conditions. The present article summarized some of the features of the RAFT process, and reviewed the recent advances in the production of green polymers.

scholarly journals Polypyridyl Ru(ii)-derivatized polypropylacrylate polymer with a terminal water oxidation catalyst. Application of reversible addition–fragmentation chain transfer polymerization

2015 ◽  
Vol 44 (18) ◽  
pp. 8640-8648 ◽  
Author(s):  
Zhen Fang ◽  
Akitaka Ito ◽  
Hanlin Luo ◽  
Dennis L. Ashford ◽  
Javier J. Concepcion ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Oxidation Catalyst ◽  
Reversible Addition ◽  
Chain Transfer Polymerization

A ruthenium containing poly(propylmethacrylate) derivative was synthesized by RAFT polymerization and end-capped with a catalyst derivative.

Access to Chain Length Dependent Termination Rate Coefficients of Methyl Acrylate via Reversible Addition−Fragmentation Chain Transfer Polymerization

2005 ◽  
Vol 38 (7) ◽  
pp. 2595-2605 ◽  
Author(s):  
Alexander Theis ◽  
Achim Feldermann ◽  
Nathalie Charton ◽  
Martina H. Stenzel ◽  
Thomas P. Davis ◽  
...  
Keyword(s):  
Chain Length ◽  
Methyl Acrylate ◽  
Chain Transfer ◽  
Rate Coefficients ◽  
Termination Rate ◽  
Reversible Addition ◽  
Chain Transfer Polymerization
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