Living polymerization and block copolymerization of various ring-substituted phenylacetylenes by rhodium-based ternary catalyst

2000 ◽  
Vol 45 (4-5) ◽  
pp. 335-339 ◽  
Author(s):  
Minoru Isomura ◽  
Yoshihiko Misumi ◽  
Toshio Masuda
Keyword(s):  
Living Polymerization ◽  
Block Copolymerization ◽  
Ternary Catalyst

Novel Rare Earth Catalysts for the Living Polymerization and Block Copolymerization of ε-Caprolactone

1996 ◽  
Vol 29 (26) ◽  
pp. 8289-8295 ◽  
Author(s):  
Youqing Shen ◽  
Zhiquan Shen ◽  
Yifeng Zhang ◽  
Kemin Yao
Keyword(s):  
Rare Earth ◽  
Living Polymerization ◽  
Block Copolymerization

scholarly journals Naturally-Derived Amphiphilic Polystyrenes Prepared by Aqueous Controlled/Living Cationic Polymerization and Copolymerization of Vinylguaiacol with R–OH/BF3·OEt2

Polymers ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 1404 ◽  
Author(s):  
Hisaaki Takeshima ◽  
Kotaro Satoh ◽  
Masami Kamigaito
Keyword(s):  
Molecular Weight ◽  
Ferulic Acid ◽  
Cationic Polymerization ◽  
Living Polymerization ◽  
Block Copolymerization ◽  
Molecular Weights ◽  
Molecular Weight Distributions ◽  
Living Cationic Polymerization ◽  
Naturally Occurring ◽  
Weight Distributions

In this study, we investigated direct-controlled/living cationic polymerization and copolymerization of 4-vinylguaiacol (4VG), i.e., 4-hydroxy-3-methoxystyrene, which can be derived from naturally-occurring ferulic acid, to develop novel bio-based amphiphilic polystyrenes with phenol functions. The controlled/living cationic polymerization of 4VG was achieved using the R–OH/BF3·OEt2 initiating system, which is effective for the controlled/living polymerization of petroleum-derived 4-vinylphenol in the presence of a large amount of water via reversible activation of terminal C–OH bond catalyzed by BF3·OEt2, to result in the polymers with controlled molecular weights and narrow molecular weight distributions. The random or block copolymerization of 4VG was also examined using p-methoxystyrene (pMOS) as a comonomer with an aqueous initiating system to tune the amphiphilic nature of the 4VG-derived phenolic polymers. The obtained polymer can be expected not only to be used as a novel styrenic bio-based polymer but also as a material with amphiphilic nature for some applications.

Stereospecific Living Polymerization of tert-Butylacetylene by Molybdenum-Based Ternary Catalyst Systems

1994 ◽  
Vol 27 (6) ◽  
pp. 1344-1348 ◽  
Author(s):  
Mitsuru Nakano ◽  
Toshio Masuda ◽  
Toshinobu Higashimura
Keyword(s):  
Living Polymerization ◽  
Catalyst Systems ◽  
Ternary Catalyst

Living polymerization of substituted acetylenes by a novel ternary catalyst, MoOCl4Et2ZnEtOH

1997 ◽  
Vol 198 (10) ◽  
pp. 3041-3049 ◽  
Author(s):  
Shigetaka Hayano ◽  
Toshio Masuda
Keyword(s):  
Living Polymerization ◽  
Substituted Acetylenes ◽  
Ternary Catalyst

Controlled and Efficient Polymerization of Methyl Methacrylate Catalyzed by Pyridinylidenaminophosphines Based Lewis Pairs

2021 ◽  
Author(s):  
Fang Ge ◽  
Sun Li ◽  
Zhe Wang ◽  
Wenzhong Zhang ◽  
Xiaowu Wang
Keyword(s):  
Molecular Weight ◽  
Methyl Methacrylate ◽  
Molecular Weight Distribution ◽  
Weight Distribution ◽  
Living Polymerization ◽  
Narrow Molecular Weight Distribution ◽  
Synthetic Approaches ◽  
Lewis Pairs

Developing different synthetic approaches to realize controlled or living polymerization are aspirational to achieve polymers with defined molecular weight, narrow molecular weight distribution and unambiguous structures by polymer chemists. Herein,...

Carbonylimidazole-hydroxyl coupling chemistry: Synthesis and block copolymerization of fully bio-reducible poly(carbonate-disulfide)s

Polymer ◽  
2020 ◽  
Vol 206 ◽  
pp. 122793
Author(s):  
Newsha Arezi ◽  
Jung Kwon Oh
Keyword(s):  
Block Copolymerization ◽  
Poly Carbonate

A facile strategy to fabricate fluorescent polymeric nanoparticles with aggregation-induced emission feature via oxygen-tolerated light-induced living polymerization

2021 ◽  
pp. 109454
Author(s):  
Shengxian Yu ◽  
Wenfeng Yan ◽  
Wei Long ◽  
Yiyang Yuan ◽  
Hui Ouyang ◽  
...  
Keyword(s):  
Polymeric Nanoparticles ◽  
Living Polymerization ◽  
Emission Feature ◽  
Aggregation Induced Emission
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