A facile approach for preparing tadpole and barbell-shaped cyclic polymers through combining ATRP and atom transfer radical coupling (ATRC) reactions

2020 ◽  
Vol 11 (40) ◽  
pp. 6529-6538 ◽  
Author(s):  
Xiaoqiang Xue ◽  
Yangjing Chen ◽  
Kang Liang ◽  
Wenyan Huang ◽  
Hongjun Yang ◽  
...  
Keyword(s):  
Atom Transfer ◽  
Cyclic Polymers ◽  
Radical Coupling ◽  
Cyclic Polystyrene

A facile strategy was developed to prepare active tadpole-shaped cyclic polystyrene, which was then used to fabricate symmetrical barbell polystyrene.

scholarly journals A new approach to multiblock copolymers using atom transfer radical coupling

e-Polymers ◽  
2005 ◽  
Vol 5 (1) ◽  
Author(s):  
René Nagelsdiek ◽  
Helmut Keul ◽  
Hartwig Höcker
Keyword(s):  
Block Copolymers ◽  
Bisphenol A ◽  
Coupling Efficiency ◽  
Chain Extension ◽  
Multiblock Copolymers ◽  
Atom Transfer ◽  
Radical Species ◽  
New Approach ◽  
Radical Coupling ◽  
Phenylene Oxide

AbstractAtom transfer radical coupling (ATRC) is a method for chain extension of styrene homopolymers prepared by atom transfer radical polymerization (ATRP). This concept is used to produce multiblock copolymers from block copolymers prepared via ATRP of styrene using various macroinitiators. ATRC comprises the reactivation of the dormant species at the chain ends. In the absence of monomer, the active radical species recombine to give chain extension (from polystyrene, PS) or multiblock copolymers (from block copolymers). The application of ATRC to PSblock- poly(bisphenol A carbonate)-block-PS (PS-b-PC-b-PS) was not successful because chain degradation of the PC block occurs. However, poly(phenylene oxide)-block-PS (PPO-b-PS) and PS-b-PPO-b-PS were successfully transformed into tri- and multiblock copolymers by ATRC, although the coupling efficiency is not as high as observed for PS oligomers under similar conditions.

Dimerization of Poly(methyl methacrylate) Chains Using Radical Trap-Assisted Atom Transfer Radical Coupling

2014 ◽  
Vol 47 (7) ◽  
pp. 2226-2232 ◽  
Author(s):  
Christopher J. Valente ◽  
Autumn M. Schellenberger ◽  
Eric S. Tillman
Keyword(s):  
Methyl Methacrylate ◽  
Atom Transfer ◽  
Poly Methyl Methacrylate ◽  
Radical Trap ◽  
Radical Coupling

Multicomponent kinetic analysis and theoretical studies on the phenolic intermediates in the oxidation of eugenol and isoeugenol catalyzed by laccase

2015 ◽  
Vol 17 (44) ◽  
pp. 29597-29607 ◽  
Author(s):  
Yan-Bing Qi ◽  
Xiao-Lei Wang ◽  
Ting Shi ◽  
Shuchang Liu ◽  
Zhen-Hao Xu ◽  
...  
Keyword(s):  
Hydrogen Atom ◽  
Kinetic Analysis ◽  
Hydrogen Atom Transfer ◽  
Theoretical Studies ◽  
Atom Transfer ◽  
Radical Coupling

Phenolic radicals in the oxidation of eugenol and isoeugenol undergo a hydrogen atom transfer pathway and a radical coupling pathway respectively.

Preparation of H-shaped ABCAB terpolymers by atom transfer radical coupling

2008 ◽  
Vol 47 (1) ◽  
pp. 59-68 ◽  
Author(s):  
Xiaolan Luo ◽  
Guowei Wang ◽  
Junlian Huang
Keyword(s):  
Atom Transfer ◽  
Radical Coupling

Synthesis of Hydroxy-Telechelic Poly(methyl acrylate) and Polystyrene by Atom Transfer Radical Coupling

2004 ◽  
Vol 37 (26) ◽  
pp. 9694-9700 ◽  
Author(s):  
Traian Sarbu ◽  
Koon-Yee Lin ◽  
James Spanswick ◽  
Roberto R. Gil ◽  
Daniel J. Siegwart ◽  
...  
Keyword(s):  
Methyl Acrylate ◽  
Atom Transfer ◽  
Radical Coupling
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