Efficient formation of stereocomplexes of poly(L-lactide) and poly(D-lactide) by terminal Diels-Alder coupling

被引:43
作者
Masutani, Kazunari [1 ]
Kawabata, Seiji [1 ]
Aoki, Takashi [1 ]
Kimura, Yoshiharu [1 ]
机构
[1] Kyoto Inst Technol, Dept Biobased Mat Sci, Sakyo Ku, Kyoto 6068585, Japan
关键词
polylactide; stereocomplex Diels-Alder reaction anthracene maleimide;
D O I
10.1002/pi.2945
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Poly(L-lactide) (PLLA) and poly(D-lactide) (PDLA) having anthracene and maleimide terminals were prepared and mixed together to induce a terminal Duels-Alder reaction providing PLLA-PDLA diblock copolymers The resultant Diels-Alder adducts showed a sole melting peak of stereocomplex crystals around 220 degrees C without homochiral crystallization In addition to their highly improved stereocomplex formation, the adducts showed no decomposition due to the retro Diels-Alder reaction below the melting temperature of the stereocomplex crystals (C) 2010 Society of Chemical Industry
引用
收藏
页码:1526 / 1530
页数:5
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