EXTRUSION BEHAVIOR OF STARCH GRAFT-COPOLYMERS - STARCH-G-POLYSTYRENE AND STARCH-G-POLY(METHYL ACRYLATE)

被引：5
|
作者：
HENDERSON, AM [1 ]
RUDIN, A [1 ]
机构：
[1] UNIV WATERLOO,GUELPH WATERLOO CTR GRAD WORK CHEM,DEPT CHEM,WATERLOO N2L 3G1,ONTARIO,CANADA
来源：
ANGEWANDTE MAKROMOLEKULARE CHEMIE | 1992年 / 194卷
关键词：
D O I：
10.1002/apmc.1992.051940103
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Starch-g-polystyrene and starch-g-poly(methyl acrylate) copolymers were synthesized and extruded without separating homopolymer PS or PMA. The extrusion behavior resembled that of thermoplastic melts in that these products were shear thinning and exhibited significant extrudate swelling, and entrance pressure losses capillary flow. These and other observations indicate that the materials comprise deformable polymer-grafted starch particles suspended in the corresponding homopolymer melt. Flow is apparently by superparticle, rather than continuum melt mechanisms.
引用
收藏
页码：23 / 33
页数：11
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