Polymerization of long chain alkyl glycidyl ethers: a platform for micellar gels with tailor-made melting points

2018 ◽  
Vol 9 (44) ◽  
pp. 5327-5338 ◽  
Author(s):  
Patrick Verkoyen ◽  
Tobias Johann ◽  
Jan Blankenburg ◽  
Christian Czysch ◽  
Holger Frey
Keyword(s):  
Block Copolymers ◽  
Ring Opening ◽  
Amphiphilic Block Copolymers ◽  
Melting Points ◽  
Controlled Polymerization ◽  
Glycidyl Ethers ◽  
Anionic Ring ◽  
Long Chain

Controlled polymerization of long-chain alkyl glycidyl ethers (AlkGE) under anionic ring opening conditions is enabled by the addition of 18-crown-6. Capitalizing on this strategy, highly amphiphilic block copolymers are prepared that form hydrogels with adjustable melting points.

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).

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

Anionic Ring-Opening Polymerization of N-(tolylsulfonyl)azetidines To Produce Linear Poly(trimethylenimine) and Closed-System Block Copolymers

2018 ◽  
Vol 140 (46) ◽  
pp. 15626-15630 ◽  
Author(s):  
Louis Reisman ◽  
Elizabeth A. Rowe ◽  
Enrique M. Jackson ◽  
Christian Thomas ◽  
Tomekia Simone ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Closed System ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Linear Poly ◽  
Anionic Ring

Aggregation-induced emission block copolymers based on ring-opening metathesis polymerization

RSC Advances ◽  
2014 ◽  
Vol 4 (93) ◽  
pp. 51194-51200 ◽  
Author(s):  
Yuming Zhao ◽  
Ying Wu ◽  
Guowei Yan ◽  
Ke Zhang
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Ring Opening ◽  
Water Soluble ◽  
Amphiphilic Block Copolymers ◽  
Ring Opening Metathesis Polymerization ◽  
Metathesis Polymerization ◽  
Aggregation Induced Emission ◽  
Selective Solvents ◽  
First Time

AIE amphiphilic block copolymers were developed from ROMP for the first time. By self-assembly in selective solvents, water soluble fluorescent nano-objects were prepared with varied structures including micelles and vesicles.

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