Chain length recognition: Core-shell supramolecular assembly from oppositely charged block copolymers

被引：535
|
作者：
Harada, A [1 ]
Kataoka, K [1 ]
机构：
[1] Univ Tokyo, Grad Sch Engn, Dept Mat Sci, Bunkyo Ku, Tokyo 1138656, Japan
来源：
SCIENCE | 1999年 / 283卷 / 5398期
关键词：
D O I：
10.1126/science.283.5398.65
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Molecular recognition based on length was found to occur between oppositely charged pairs of flexible and randomly coiled block copolymers in an aqueous milieu. Matched pairs with the same block lengths of polyanions and polycations exclusively formed even in mixtures with different block lengths. These assemblies of the charged segments with matched chain lengths then formed larger core-shell-type supramolecular assemblies with an extremely,narrow size distribution due to the strict phase separation between core- and shell-forming segments.
引用
收藏
页码：65 / 67
页数：3
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