MECHANOCHEMICAL BLOCK COPOLYMERIZATION IN HETEROGENEOUS SYSTEMS OF THE SOLID POLY(VINYL CHLORIDE) WITH STYRENE BY ULTRASONIC IRRADIATION

被引：21

作者：

FUJIWARA, H

KIMURA, T

SEGI, M

NAKATUKA, T

NAKAMURA, H

机构：

[1] Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, Osaka, 535, 16-1, Omiya 5-chome, Asahi-ku

来源：

POLYMER BULLETIN | 1992年 / 28卷 / 02期

关键词：

D O I：

10.1007/BF00299655

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Mechanochemical block copolymerization in heterogeneous systems of the solid poly(vinyl chloride)-styrene-sodium dodecyl sulfate aqueous solutions has been studied by ultrasonic irradiation at 65-degrees-C. The block copolymerization of sytrene was initiated by free radicals produced from the poly(vinyl chloride) particles by ultrasonic waves. The initial rate of the block copolymerization Rp was given by Rp is-proportional-to [Styrene] [Sodium dodecyl sulfate] 1/2. Both copolymer and homopolymer were obtained. For example, when 2.506 g of the poly(vinyl chloride) particles, 24.23 g of styrene, and 54.00 g of sodium dodecyl sulfate aqueous solution (0.500 wt%) were added in the reaction system, the weight proportions of the block copolymer and polystyrene after 60 min were approximately 50 and 20 %.

引用

页码：189 / 196

页数：8

共 4 条

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KIMURA, K ;

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[2] COORDINATING FUNCTION OF VINYL CHLORIDE-B-STYRENE COPOLYMERS IN THE MECHANICAL BLENDING OF POLY-(VINYL CHLORIDE) AND POLYSTYRENE BY OPEN 2 ROLLS [J].

FUJIWARA, H ;

GOTO, K .

KOBUNSHI RONBUNSHU, 1986, 43 (08) :471-479

[3]

FUJIWARA H, 1981, 32TH POL DISC M JAP

[4]

SAKURADA I, 1944, KOGYO KAGAKU ZASSHI, V47, P133

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