Crosslinking of the inner poly(methyl methacrylate) core of poly(α-methylstyrene-b-methyl methacrylate) micelles in selective solvent: 1. Effect of solvent selectivity
Crosslinking of the inner poly(methyl methacrylate) core of poly(α-methylstyrene-b-methyl methacrylate) micelles in selective solvent: 1. Effect of solvent selectivity
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聚（α-甲基苯乙烯-b-甲基丙烯酸甲酯）胶束内部聚（甲基丙烯酸甲酯）核在选择性溶剂中的交联： 1. 溶剂选择性的影响
DOI：
10.1016/0032-3861(90)90289-b
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发表时间：
1990
期刊：
影响因子：
4.6
通讯作者：
T. Fukutomi
中科院分区：
文献类型：
--
作者：
R. Saito;K. Ishizu;T. Fukutomi
在苯和环己烷的混合溶剂中，进行了聚甲基丙烯酸甲酯核在聚α-甲基苯乙烯-b-甲基丙烯酸甲酯胶束中的交联反应。在合适的溶剂条件下，获得了具有足够高分子量和α-甲基苯乙烯含量bbb39 %的核-电晕型嵌段共聚物。在苯/环己烷比为3 7-4 6 （v/v）时，粒径最小，这取决于嵌段共聚物的性质。当溶剂成分偏离此区域时，颗粒尺寸急剧增大。在本研究的实验条件下，当嵌段共聚物分子量< 2× 10 4时，即使α-甲基苯乙烯含量很高，也会发生胶束间交联。
The crosslinking reaction of poly (methyl methacrylate) cores in poly (α-methylstyrene-b-methyl methacrylate) micelles was carried out in mixed solvents of benzene and cyclohexane. In suitable solvent core-corona type particles were obtained for block copolymers with sufficiently high molecular weight and α-methylstyrene content> 39%. The particle size became a minimum at a benzene/cyclohexane ratio of 3 7–4 6 (v/v) which depended on the nature of the block copolymers. The particle size increased drastically when the solvent compositions deviated from this region. When the molecular weight of the block copolymer was< 2× 10 4, inter-micelle crosslinking took place under the experimental conditions of this study, even when the α-methylstyrene content was very high.