Citation: Xiao Li Zhan, Bi Chen, Qing Hua Zhang, Ling Min Yi. Sphere-to-rod transition of short-chain PEO-b-PDMS-b-PEO in aqueous solution induced by copolymer concentration[J]. Chinese Chemical Letters, ;2008, 19(11): 1363-1366. doi: 10.1016/j.cclet.2008.07.012 shu

Sphere-to-rod transition of short-chain PEO-b-PDMS-b-PEO in aqueous solution induced by copolymer concentration

a College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, China;
b Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China

Received Date: 19 May 2008

Fund Project: This work has been supported by National Natural Science Foundation of China (No. 20606029) and China Postdoctoral Science Foundation (No. 20070420230).

A short-chain triblock copolymer EO₉-DMS₇-EO₉ was synthesized by coupling reaction of allyl-terminated poly(ethylene oxide) and Si-H-terminated poly(dimethylsiloxane).The structure and purity of synthesized copolymer was carefully character-ized.Self-assembly behavior of EO₉-DMS₇-EO₉ triblock copolymer in water was investigated.And it was found that along with the increase of copolymer concentration,morphology of self-assembled aggregates transits from sphere to rod.A plausible under-standing of the morphology transition for the investigated triblock copolymer was proposed.
- Block copolymer,
- Self-assembly,
- Polysiloxane,
- Morphology transition
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