Copolymerization of Glycidyl Methacrylate and 1,1,1,3,3,3-Hexafluoroisopropyl Acrylate

2021 ◽  
Vol 899 ◽  
pp. 387-391
Author(s):  
Alexandra O. Grigoreva ◽  
Kseniia Tarankova ◽  
Sergey D. Zaitsev
Keyword(s):  
Glycidyl Methacrylate ◽  
Molar Mass ◽  
Chain Transfer ◽  
Good Control ◽  
Chain Transfer Agent ◽  
Polymeric Chain ◽  
Reactivity Ratios ◽  
Reversible Addition

The copolymerization of 1,1,1,3,3,3-hexafluoroisopropyl acrylate (HFIPA) and glycidyl methacrylate via reversible addition-fragmentation chain transfer (RAFT) process was investigated. 2-cyano-2-propyl dodecyl trithiocarbonate (CPDT) was used as chain transfer agent. It is turned out that CPDT and polymeric chain transfer agent obtained based on HFIPA and CPDT provide a good control over molar mass characteristic of copolymers (Đ = 1.05). Reactivity ratios were found to be r1(GMA) = 1.57 and r2(HFIPA) = 0.05 by Fineman–Ross model.

Synthesis and Investigation of pH-Switchable RAFT Agent in Polymerization of Styrene

2021 ◽  
Vol 899 ◽  
pp. 638-643
Author(s):  
Artem Vlasov ◽  
Alexandra O. Grigoreva ◽  
Sergey D. Zaitsev
Keyword(s):  
Mass Distribution ◽  
Molar Mass ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Chain Transfer Agent ◽  
Molar Mass Distribution ◽  
Reversible Addition ◽  
Raft Agent ◽  
Kinetic Features

pH-switchable chain transfer agent 1-cyano-1-methylethyl (phenyl)(pyridin-4-yl)-carbamodithioate (CMPC) was synthesized and reversible addition-fragmentation chain-transfer (RAFT) polymerization of styrene in presence of CMPC was studied. It was shown that presence of CMPC affects molar mass distribution and kinetic features and realizes supposed mechanism of RAFT polymerization. Different effect of CMPC on polymerization of styrene in presence of protic acids was studied.

The photo-controlled polymerization-induced self-assembly and reorganization process for fabrication of polymeric nanomaterials

2017 ◽  
Vol 1 (6) ◽  
pp. 1200-1206 ◽  
Author(s):  
Jiemei Zhou ◽  
Chunyan Hong ◽  
Caiyuan Pan
Keyword(s):  
Visible Light ◽  
Self Assembly ◽  
Dispersion Polymerization ◽  
Chain Transfer ◽  
Chain Transfer Agent ◽  
Controlled Polymerization ◽  
Dimethylaminoethyl Methacrylate ◽  
Reversible Addition

A visible light mediated reversible addition–fragmentation chain transfer (RAFT) dispersion polymerization of benzyl methacrylate (BzMA) is conducted in ethanol using poly(2-dimethylaminoethyl methacrylate) (PDMAEMA) as a macro-chain transfer agent (macro-CTA), affording polymeric nanomaterials with various morphologies.

scholarly journals Influence of structure and solubility of chain transfer agents on the RAFT control of dispersion polymerisation in scCO2

2021 ◽  
Author(s):  
Ana A. C. Pacheco ◽  
Arnaldo F. da Silva Filho ◽  
Kristoffer Kortsen ◽  
Magnus W. D. Hanson-Heine ◽  
Vincenzo Taresco ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Methyl Methacrylate ◽  
Chain Transfer ◽  
Good Control ◽  
Chain Transfer Agent ◽  
Methylpropionic Acid ◽  
Transfer Agents

RAFT dispersion polymerisation of methyl methacrylate is performed in scCO2 with 2-(dodecylthiocarbonothioylthio)-2-methylpropionic acid (DDMAT) present as chain transfer agent (CTA) and surprisingly shows good control over PMMA molecular weight.

Homophase and heterophase polymerizations of butyl acrylate mediated by poly(acrylic acid) as a reversible addition–fragmentation chain-transfer agent

2015 ◽  
Vol 57 (6) ◽  
pp. 547-559 ◽  
Author(s):  
E. V. Chernikova ◽  
A. V. Plutalova ◽  
K. O. Mineeva ◽  
I. R. Nasimova ◽  
E. Yu. Kozhunova ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Butyl Acrylate ◽  
Chain Transfer ◽  
Chain Transfer Agent ◽  
Reversible Addition ◽  
Poly Acrylic Acid

RAFT Polymerization of Monomers with Highly Disparate Reactivities: Use of a Single RAFT Agent and the Synthesis of Poly(styrene-block-vinyl acetate)

2013 ◽  
Vol 66 (12) ◽  
pp. 1564 ◽  
Author(s):  
Lily A. Dayter ◽  
Kate A. Murphy ◽  
Devon A. Shipp
Keyword(s):  
Block Copolymers ◽  
Vinyl Acetate ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Good Control ◽  
Scanning Calorimetry ◽  
Styrene Polymerization ◽  
Reversible Addition ◽  
Raft Agent ◽  
End Group

A single reversible addition–fragmentation chain transfer (RAFT) agent, malonate N,N-diphenyldithiocarbamate (MDP-DTC) is shown to successfully mediate the polymerization of several monomers with greatly differing reactivities in radical/RAFT polymerizations, including both vinyl acetate and styrene. The chain transfer constants (Ctr) for MDP-DTC for both these monomers were evaluated; these were found to be ~2.7 in styrene and ~26 in vinyl acetate, indicating moderate control over styrene polymerization and good control of vinyl acetate polymerization. In particular, the MDP-DTC RAFT agent allowed for the synthesis of block copolymers of these two monomers without the need for protonation/deprotonation switching, as has been previously developed with N-(4-pyridinyl)-N-methyldithiocarbamate RAFT agents, or other end-group transformations. The thermal properties of the block copolymers were studied using differential scanning calorimetry, and those with sufficiently high molecular weight and styrene composition appear to undergo phase separation. Thus, MDP-DTC may be useful for the production of other block copolymers consisting of monomers with highly dissimilar reactivities.

scholarly journals Synthesis of bottlebrush polymers via transfer-to and grafting-through approaches using a RAFT chain transfer agent with a ROMP-active Z-group

2015 ◽  
Vol 6 (31) ◽  
pp. 5643-5652 ◽  
Author(s):  
Scott C. Radzinski ◽  
Jeffrey C. Foster ◽  
John B. Matson
Keyword(s):  
Chain Transfer ◽  
Chain Transfer Agent ◽  
Multiple Strategies ◽  
Reversible Addition ◽  
Grafting Through ◽  
Chain Transfer Polymerization

A novel dithiocarbamate chain transfer agent for reversible addition–fragmentation chain transfer polymerization with a directly polymerizable Z-group was synthesized and used to make bottlebrush polymers via multiple strategies.

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