淀粉接枝共聚物在淀粉/聚乳酸共混体系中的作用  

THE ROLE OF STARCH GRAFT COPOLYMERS IN STARCH/PLA BLENDS

作　　者：涂克华[1] 王利群[1] 王焱冰[1] 

机构地区：[1]浙江大学高分子科学与工程系,浙江杭州310027

出　　处：《高分子材料科学与工程》2002年第5期108-110,114,共4页Polymer Materials Science & Engineering

基　　金：浙江省科技计划重点项目 (0 0 110 1115 )

摘　　要：研究了淀粉 /聚乳酸共混体系的相容性 ,考察了淀粉 -聚醋酸乙烯酯和淀粉 -聚乳酸接枝共聚物对淀粉 /聚乳酸共混体系相容性的影响。发现上述两种接枝共聚物均可有效地增加淀粉与聚乳酸的相容性 。The miscibility of starch/Poly (lactic acid) (PLA) blends was studied and the effect of starch graft PLA and starch graft Poly (vinyl acetate) copolymers on the compatibility of the blends was investigated. It was found that the addition of the starch graft copolymers to the blends resulted in the decrease of the degree of crystallinity of PLA in the blends and the uniformed morphology of the blend, suggesting that the starch graft copolymers conduced to the compatibility of starch/PLA blend. It was also found that the anti water property and tensile strength of starch/PLA blends were remarkably improved when the starch graft copolymers were added.

关 键 词：淀粉接枝共聚物 淀粉 聚乳酸 共混体系 作用 相容性 

分 类 号：O632.5[理学—高分子化学]