Core‐shell type polymer microspheres prepared by domain fixing of block copolymer films
Core‐shell type polymer microspheres prepared by domain fixing of block copolymer films
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嵌段共聚物薄膜域固定制备核壳型聚合物微球
DOI：
10.1002/pola.1989.080271113
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
A. Onen
中科院分区：
文献类型：
--
作者：
K. Ishizu;A. Onen
采用顺序阴离子加成法制备了规整的聚[苯乙烯(S)-b-异戊二烯(I)]两嵌段共聚物。这些嵌段共聚物的聚异戊二烯(PI)球状结构域在一氯化硫(S2Cl2)正己烷溶液中进行了交联反应。交联物的电子显微镜照片表明了核壳型聚合物微球的结构。核磁共振和Turbi+计量测量发现，核壳型聚合物微球的溶解度强烈依赖于壳层部分的嵌段链的溶解度。这些微球的颗粒大小呈窄分布。
Well-defined poly[styrene(S)-b-isoprene(I)] diblock copolymers were prepared by sequential anionic addition. The crosslinking reactions of polyisoprene (PI) spherical domains of these block copolymers were carried out in a n-hexane solution of sulfur monochloride (S2Cl2). Electron micrograph of crosslinked products indicates the structure of core-shell type polymer microspheres. It is found from NMR and turbi+imetric measurements that the solubility of core-shell type polymer microspheres depends strongly on that of block chains comprising the shell portion. The particle size of these microspheres shows a narrow distribution.