Recent Advances in Thermoplastic Elastomer Synthesis

1991 ◽  
Vol 64 (3) ◽  
pp. 450-468 ◽  
Author(s):  
Roderic P. Quirk ◽  
Jungahn Kim
Keyword(s):  
Block Copolymers ◽  
Anionic Polymerization ◽  
Structural Control ◽  
Thermoplastic Elastomer ◽  
Living Polymerization ◽  
Controlled Synthesis ◽  
Living Anionic Polymerization ◽  
Recent Advances ◽  
Living Polymerizations

Abstract A variety of living polymerization systems are now available for the controlled synthesis of block copolymers. Although living anionic polymerization remains as the method of choice for the most precise structural control, living polymerizations proceeding via other mechanistic types provide extremely useful extensions of this methodology to a wider variety of monomers.

scholarly journals A controlled synthesis method of alkyl methacrylate block copolymers via living anionic polymerization at ambient temperature

RSC Advances ◽  
2019 ◽  
Vol 9 (28) ◽  
pp. 16049-16056 ◽  
Author(s):  
Zheng Li ◽  
Jianding Chen ◽  
Guijin Zou ◽  
Tongyuan Zhang ◽  
Dafu Wei ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Ambient Temperature ◽  
Anionic Polymerization ◽  
Diblock Copolymers ◽  
Synthesis Method ◽  
Controlled Synthesis ◽  
Living Anionic Polymerization ◽  
Alkyl Methacrylate ◽  
High Yields

A series of well-defined diblock copolymers containing PMMA, PEMA and PBMA blocks were synthesized with narrow MWDs and high yields via anionic polymerization, while t-BuOK was selected as initiator in THF at 0 °C. .

Recent Advances in Anionic Polymerization

1981 ◽  
Vol 54 (3) ◽  
pp. 627-640 ◽  
Author(s):  
Adel F. Halasa
Keyword(s):  
Carbon Dioxide ◽  
Ethylene Oxide ◽  
Polymer Chain ◽  
Anionic Polymerization ◽  
Living Polymerization ◽  
Thermoplastic Elastomers ◽  
Synthetic Polymer ◽  
Recent Advances

Abstract In summary, one can say that the versatility of living polymerization makes it a very useful and unique technique. Synthetic polymer chemists can utilize the lithium at the end of the chain to add polymer-like conjugated monomers, in order to tailor-make the polymer chain, or they can use chelating diamines to change the microstructure of the polymer chain. They can also run hydrogenation on anionically prepared polydienes to produce thermoplastic elastomers. They can transform anionically made polymer chain ends by adding ethylene oxide, carbon dioxide and halogens. This paper has emphasized recent advances in this field.

scholarly journals Phosphonium-containing diblock copolymers from living anionic polymerization of 4-diphenylphosphino styrene

2016 ◽  
Vol 52 (5) ◽  
pp. 950-953 ◽  
Author(s):  
Alison R. Schultz ◽  
Gregory B. Fahs ◽  
Chainika Jangu ◽  
Mingtao Chen ◽  
Robert B. Moore ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Anionic Polymerization ◽  
Diblock Copolymers ◽  
Living Anionic Polymerization ◽  
Molecular Weights

Living anionic polymerization of 4-diphenylphosphino styrene (DPPS) achieved well-defined homopolymers, poly(DPPS-b-S) styrenic block copolymers, and poly(I-b-DPPS) diene-based diblock copolymers with predictable molecular weights and narrow polydispersities.

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