scholarly journals Combination of Episulfide Ring-Opening Polymerization With ATRP for the Preparation of Amphiphilic Block Copolymers

2013 ◽  
Vol 34 (2) ◽  
pp. 156-162 ◽  
Author(s):  
Cong-Duan Vo ◽  
Christopher J. Cadman ◽  
Roberto Donno ◽  
Jeroen A. C. M. Goos ◽  
Nicola Tirelli
Keyword(s):  
Block Copolymers ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Amphiphilic Block Copolymers

Poly(Ethylene Oxide)-B-Poly(ε-Caprolactone) Amphiphilic Block Copolymers: Synthesis and Self-Assembly

2011 ◽  
Vol 284-286 ◽  
pp. 1877-1885
Author(s):  
Ke Xin Kang ◽  
Min Ying Liu ◽  
Qing Xiang Zhao ◽  
Peng Fu ◽  
Xiao Bing Wang
Keyword(s):  
Molecular Weight ◽  
Block Copolymers ◽  
Self Assembly ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Amphiphilic Block Copolymers ◽  
H Nmr ◽  
Transmission Electron ◽  
Particle Size Analyzer ◽  
Anionic Ring

A series of amphiphilic block copolymers mPEO-b-PCL with different PCL molecular weight were successfully prepared by combination of anionic ring-opening polymerization with coordination-insertion ring-opening polymerization. Firstly, the linear mPEO was prepared by anionic ring-opening copolymerization of EO with 2-(2-methoxyethoxy) ethoxide potassium as the small molecule initiators, then the mPEO as the macroinitiator was used to initiate the ring-opening polymerization of CL, in the absence of Sn(Oct)2 as the catalyst, and amphiphilic block copolymers mPEO-b-PCL were obtained. By changing the ratio of monomer and macroinitiator, prepared a series of different molecular weight mPEO-b-PCL. The structure of intermediates and final products were characterized by 1H NMR and GPC. The critical micelle concentration (cmc) of the final copolymer was measured. In addition, the sizes and morphologies of the obtained micelles at different PCL chains were studied with Laser nano-particle size analyzer and transmission electron microscopy (TEM).

Aluminum‐Catalyzed One‐Pot Synthesis of Polyester‐ b ‐Polypeptide Block Copolymers by Ring‐Opening Polymerization

2019 ◽  
Vol 220 (14) ◽  
pp. 1900040 ◽  
Author(s):  
Thibault E. Schmid ◽  
Carine Robert ◽  
Vincent Richard ◽  
Sumesh K. Raman ◽  
Vincent Guérineau ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
One Pot ◽  
One Pot Synthesis

Tailoring the degradation and mechanical properties of poly(ε-caprolactone) incorporating functional ε-caprolactone-based copolymers

2019 ◽  
Vol 10 (27) ◽  
pp. 3786-3796 ◽  
Author(s):  
Mi Xu ◽  
Cuili Guo ◽  
Haozhen Dou ◽  
Yi Zuo ◽  
Yawei Sun ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Block Copolymers ◽  
Ring Opening ◽  
Oxidative Degradation ◽  
Ring Opening Polymerization ◽  
Functional Block ◽  
Functional Block Copolymers

Functional block copolymers (COPs) were synthesized through the ring-opening polymerization, and the effects of COPs on the hydrolytic & oxidative degradation and mechanical properties of PCL/COP composites were studied.

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