STUDIES ON BLOCK-COPOLYMERS OF ISOTACTIC POLYSTYRENE AND POLY(ETHYLENE-CO-PROPYLENE) (II) - FRACTIONATION AND CHARACTERIZATION OF THE BLOCK-COPOLYMERS

Authors
CHEN TH LIN SA
Citation
Th. Chen et Sa. Lin, STUDIES ON BLOCK-COPOLYMERS OF ISOTACTIC POLYSTYRENE AND POLY(ETHYLENE-CO-PROPYLENE) (II) - FRACTIONATION AND CHARACTERIZATION OF THE BLOCK-COPOLYMERS, Gaodeng xuexiao huaxue xuebao, 18(12), 1997, pp. 2053-2056
Citations number
7
Journal title
Gaodeng xuexiao huaxue xuebao → ACNP
ISSN journal
02510790
Volume
18
Issue
12
Year of publication
1997
Pages
2053 - 2056
Database
ISI
SICI code
0251-0790(1997)18:12<2053:SOBOIP>2.0.ZU;2-9
Abstract
The sequential block copolymerization product of styrene with mixture of ethylene and propylene was fractionated by successive extraction wi th suitable solvents. The isolated iPS-b-Poly(E-co-P) block copolymer (20%similar to 30% content in total), which is soluble in butanone or chloroform was characterized by C-13 NMR, FTIR, WAXD, DSC and TEM etc. . This kind of copolymers containing iPS segment are semi-crystalline diblock copolymers with special microphase-separation structure.