Effect of Coordination Between Polymer Chains on the Solution Behavior of Zn-SIIR/PSVP Blends

Abstract

Abstract: Ionic coordination between zinc sulfonated butyl rubber(Zn-SIIR) and styrene-4 vinyl-pyridine copolymer(PSVP) in solution was investigated. It was found that viscosity of the blend solution varied with the composition and attained maximum as the molar ratio of zinc sulfonated groups to pyridine groups was 1:1,implying that coordination-type interac tion occurred between the two kinds of groups, and each zinc ion coordinated with two nitro gen atoms in pyridine rings. The coordination strongly affected the solution behavior of Zn SIIR/PSVP blends. Viscosity increased rapidly as concentration of the blend increased. Un usual viscosity-temperature relationship was found for the blend solutions with low levels of polar cosolvent (hexanol).

Key words: Zn-SIIR, PSVP, Polymer blend, Coordination, Viscosity

CLC Number:

O631.12

TrendMD:

ZENG Zhao-Hua, FENG Ke, LI Zhuo-Mei. Effect of Coordination Between Polymer Chains on the Solution Behavior of Zn-SIIR/PSVP Blends[J]. Chem. J. Chinese Universities, 1995, 16(5): 816.

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Effect of Coordination Between Polymer Chains on the Solution Behavior of Zn-SIIR/PSVP Blends

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