Chem. J. Chinese Universities ›› 2002, Vol. 23 ›› Issue (1): 158.

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The Preparation of Hollow Nano-fiber from Tri-block Copolymer

ZHOU Ru-Ling1, ZHOU Nan1, YAN Xiao-Hu1, LIU Guo-Jun2   

  1. 1. College of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China;
    2. Department of Chemistry, the University of Calgary, Calgary, AB, Canada T2N 1N4
  • Received:2001-04-04 Online:2002-01-24 Published:2002-01-24

Abstract: The solid state morphology of the tri-block copolymer PS-b-PCEMA-b-PtBA, which was synthesized by anionic polymerization with narrow molecular weight distribution, was in lamella structure from TEM micrographs. After being blended with polystyrene with the mass ratio of 1:04, the morphology showed cylinder structure. With PSas continous phase, PCEMA and PtBA phases formed cylinders with PCEMA as outer layer. The nanofibres can be got and dispersed in good solvents of PS when the PCEMA phase was crosslinked. The t-butyl group in PtBA phase can be cleavaged by reacting with TM-SI, and nanofibres changed to nanotubes finally. It has the great potential applications, such as in the preparation of nanowires, template polymerization, nano reactor etc ..

Key words: Block copolymer, Solid morphology structure, Nanofibre, Hollow nanofibre

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