Emulsifier‐free reversible addition–fragmentation chain transfer emulsion polymerization of alkyl acrylates mediated by symmetrical trithiocarbonates based on poly(acrylic acid)

2019 ◽  
Vol 68 (7) ◽  
pp. 1303-1314 ◽  
Author(s):  
Natalia S Serkhacheva ◽  
Nikolay I Prokopov ◽  
Elena V Chernikova ◽  
Elena Y Kozhunova ◽  
Inna O Lebedeva ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Emulsion Polymerization ◽  
Chain Transfer ◽  
Alkyl Acrylates ◽  
Reversible Addition ◽  
Poly Acrylic Acid

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

scholarly journals A Roadmap towards Successful Nanocapsule Synthesis via Vesicle Templated RAFT-Based Emulsion Polymerization

Polymers ◽  
2018 ◽  
Vol 10 (7) ◽  
pp. 774 ◽  
Author(s):  
Wendy Rusli ◽  
Alexander Jackson ◽  
Alexander van Herk
Keyword(s):  
Emulsion Polymerization ◽  
Special Form ◽  
Chain Transfer ◽  
Cost Effective ◽  
Solid Particles ◽  
High Yield ◽  
Full Understanding ◽  
High Demand ◽  
Molecular Control ◽  
Reversible Addition

Vesicle templated emulsion polymerization is a special form of emulsion polymerization where the polymer is grown from the outside of the vesicle, leading to nanocapsules. Cost effective nanocapsules synthesis is in high demand due to phasing out of older methods for capsule synthesis. Although the first indications of this route being successful were published some 10 years ago, until now a thorough understanding of the parameters controlling the morphologies resulting from the template emulsion polymerization was lacking. Most often a mixture of different morphologies was obtained, ranging from solid particles to pro-trusion structures to nanocapsules. A high yield of nanocapsules was not achieved until now. In this paper, the influence of initial vesicle dispersion, choice of the Reversible Addition-Fragmentation chain Transfer (RAFT) species and oligomer, monomer and crosslinker have been investigated. It turns out that good initial vesicle dispersion, molecular control of the RAFT process, a not too hydrophobic monomer and some crosslinking is needed to result in high yield of nanocapsules. In previous work, the level of RAFT control was often suboptimal and not properly verified and although nanocapsules were shown, other morphologies were also present. We now believe we have a full understanding of vesicle templated nanocapsules synthesis, relevant to many applications.

Toughening of an epoxy thermoset with poly[styrene-alt-(maleic acid)]-block-polystyrene-block-poly(n-butyl acrylate) reactive core–shell particles

RSC Advances ◽  
2016 ◽  
Vol 6 (42) ◽  
pp. 35621-35627 ◽  
Author(s):  
Ren He ◽  
Xiaoli Zhan ◽  
Qinghua Zhang ◽  
Fengqiu Chen
Keyword(s):  
Emulsion Polymerization ◽  
Maleic Acid ◽  
Butyl Acrylate ◽  
Chain Transfer ◽  
Core Shell ◽  
Reversible Addition ◽  
Raft Agent ◽  
Shell Particles

Reactive core–shell particles for epoxy toughening were synthesized via reversible addition–fragmentation chain transfer emulsion polymerization mediated by an amphiphilic macro-RAFT agent followed by core-crosslinking to increase stability.

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