Synthesis and characterization of novel barbwire-like graft polymers poly(ethylene oxide)-g-poly(ε-caprolactone)4 by the ‘grafting from’ strategy

2015 ◽  
Vol 6 (3) ◽  
pp. 466-475 ◽  
Author(s):  
Xinyi Liang ◽  
Yujie Liu ◽  
Jian Huang ◽  
Liuhe Wei ◽  
Guowei Wang
Keyword(s):  
Ethylene Oxide ◽  
Ring Opening ◽  
Addition Reaction ◽  
Ring Opening Polymerization ◽  
Synthesis And Characterization ◽  
Graft Polymers ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Grafting From

Novel barbwire-like graft polymers PEO-g-PCL4 were synthesized by combination of ring opening polymerization (ROP) and Glaser coupling with thiol–yne addition reaction via the “grafting from” strategy.

Synthesis and characterization of novel dumbbell shaped copolymers poly(ethylene oxide)x-b-polystyrene-b-poly(ethylene oxide)x with tunable side arms by combination of efficient thiol-ene addition reaction with living polymerization mechanism

RSC Advances ◽  
2015 ◽  
Vol 5 (41) ◽  
pp. 32358-32368 ◽  
Author(s):  
Lingdi Chen ◽  
Jian Huang ◽  
Xuepu Wang ◽  
Chengjiao Lu ◽  
Hongdong Zhang ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Addition Reaction ◽  
Living Polymerization ◽  
Synthesis And Characterization ◽  
Synthetic Route ◽  
Polymerization Mechanism ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Ene Addition

A series of well-defined dumbbell shaped copolymers consisting of PEO and PS segments were successfully synthesized by LAP and ROP mechanisms and the efficient thiol-ene addition reaction. This versatile synthetic route might be used to synthesize other similar copolymers.

Synthesis and characterization of poly(dimethylsiloxane)-poly(ethylene oxide)-heparin CBABC type block copolymers

1989 ◽  
Vol 1 (4) ◽  
pp. 299-313 ◽  
Author(s):  
Ai Zhi Piao ◽  
Chisato Nojiri ◽  
Ki Dong Park ◽  
Harvey Jacobs ◽  
Jan Feijen ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Ethylene Oxide ◽  
Synthesis And Characterization ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Synthesis and Characterization of Amphiphilic Poly(ethylene oxide)-block-poly(hexyl methacrylate) Copolymers

2003 ◽  
Vol 204 (8) ◽  
pp. 1047-1055 ◽  
Author(s):  
Surbhi Mahajan ◽  
Sabine Renker ◽  
Peter F. W. Simon ◽  
Jochen S. Gutmann ◽  
Anurag Jain ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Synthesis And Characterization ◽  
Methacrylate Copolymers ◽  
Poly Ethylene Oxide ◽  
Hexyl Methacrylate ◽  
Poly Ethylene

Biodegradable copolymers based on poly(ethylene oxide), polylactide and polydepsipeptide sequences with functional groups

e-Polymers ◽  
2001 ◽  
Vol 1 (1) ◽  
Author(s):  
Yakai Feng ◽  
Doris Klee ◽  
Hartwig Höcker
Keyword(s):  
Block Copolymers ◽  
Ethylene Oxide ◽  
Aspartic Acid ◽  
Functional Groups ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Biodegradable Copolymers ◽  
Protective Groups ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

AbstractFor the purpose of increasing the hydrophilicity of polylactide, new block copolymers with protected functional groups, poly(lactide-co-(S)-b-benzyl aspartate)-poly(ethylene oxide)-poly(lactide-co-(S)- b-benzyl aspartate), were synthesized via ring-opening polymerization of D,L-lactide and (3S, 6R,S)-3- [(benzyloxycarbonyl)methyl]-6-methylmorpholine-2,5-dione in the presence of hydroxyltelechelic poly(ethylene oxide) (PEO) as an initiator at 140 °C for 24 h. The benzyl protective groups of the block copolymers were completely removed to give poly(lactide-co-(S)-aspartic acid)-PEO-poly(lactide-co-(S)-aspartic acid), (poly(DLLA-co-Asp)-b-PEO-b-poly(DLLA-co-Asp)). This shows lower crystallization and melting temperature compared with the polymers before deprotection. Poly(DLLA-co-Asp)-b-PEO-b-poly(DLLA-co-Asp) with 55.6 wt.-% of PEO is more hydrophilic, shows higher water absorption and is degraded faster than with 39.5 wt.-% of PEO.

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