Immobilization of cationic polymer particles having active ester groups onto solid surfaces
Immobilization of cationic polymer particles having active ester groups onto solid surfaces
复制标题
将具有活性酯基的阳离子聚合物颗粒固定在固体表面上
DOI：
10.1007/s00396-002-0712-1
复制
发表时间：
2002
影响因子：
2.4
通讯作者：
K. Nagai
中科院分区：
文献类型：
--
作者：
K. Yamaguchi;T. Taniguchi;S. Kawaguchi;K. Nagai
以苯乙烯（ST）与水溶性活性酯单体甲基丙烯酰氧基苯基二甲基磺酸甲酯（MAPDS）为共聚体，采用无乳化剂的乳液聚合法制备了表面带有磺酸基和活性酯基的单分散阳离子聚合物颗粒。通过静电作用和化学反应分别在未改性玻璃板和胺化玻璃板上制备了阳离子聚合物颗粒单层膜。在没有电解质的情况下，将聚合物颗粒以相对规则的间隔固定在未修饰的玻璃板上，并随着乳胶固体含量、电解质和阳离子表面活性剂浓度的变化而改变玻璃板上颗粒单层的形态。通过控制乳胶的pH值和电解质浓度，将聚合物颗粒作为聚集体固定在胺化玻璃板上。颗粒单层中剩余的活性酯基很容易与初级氨基化合物发生反应。
Monodispersed cationic polymer particles with sulfonium groups and active ester groups at their surfaces were prepared by emulsifier-free emulsion copolymerization of styrene (ST) with a water-soluble active ester monomer, methacryloyloxyphenyldimethylsulfonium methylsulfate (MAPDS). The cationic polymer particle monolayers were fabricated on unmodified and aminated glass plates by electrostatic interactions and chemical reactions, respectively. The polymer particles were immobilized onto unmodified glass plates at relatively regular intervals in the absence of electrolytes, and the morphology of particle monolayers on the glass plates was changed with solid content of latex, electrolyte and cationic surfactant concentration. The polymer particles were immobilized onto aminated glass plate as aggregates by controlling the pH of latex and electrolyte concentration. Remaining active ester groups of the particle monolayers were confirmed to react easily with primary amino compounds.