Chem. J. Chinese Universities ›› 1997, Vol. 18 ›› Issue (12): 2053.

• Articles • Previous Articles     Next Articles

Studies on Block Copolymers of Isotactic Polystyrene and Poly(ethylene-co-propylene) (Ⅱ) ─Fractionation and Characterization of the Block Copolymers

CHEN Tian-Hong, LIN Shang-An   

  1. Institute Of Polymer Science, Zhongshan University, Guangzhou 510275
  • Received:1996-08-08 Online:1997-12-24 Published:1997-12-24

Abstract: The sequential block copolymerization product of styrene with mixture of ethyleneand propylene was fractionated by successive extraction with suitable solvents.The isolatediPS-b-Poly(E-co-P) block copolymer (2O%-3O% content in total), which is s0luble in bu-tanone or chloroform was characterized by 13C NMR, FTIR, WAXD, DSCand TEMetc..This kind of copolymers containing iPSsegment are semi-crystalline diblock copolymers withspecial microphase-separation structure.

Key words: IPS-b-poly(E-co-P), Block copolymer, Fractionation, Characterization

CLC Number: 

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