SYNTHESIS AND CHARACTERIZATION OF POLYSTYRENE CORE POLYACROLEIN SHELL LATEXES
SYNTHESIS AND CHARACTERIZATION OF POLYSTYRENE CORE POLYACROLEIN SHELL LATEXES
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DOI：
10.1177/088391159300800301
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发表时间：
1993-07-01
影响因子：
1.7
通讯作者：
DELAMAR, M
中科院分区：
文献类型：
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作者：
BASINSKA, T;SLOMKOWSKI, S;DELAMAR, M
采用无乳化剂-乳液沉淀聚合法制备了聚苯乙烯/丙烯醛乳液。根据丙烯醛单体饲料的不同，得到了0.30 ~ 0.52 μ m的单分散颗粒。单体进料中丙烯醛越多，产生的乳胶颗粒直径越小。分析表明，颗粒具有核壳形态。核心富含疏水（聚苯乙烯）成分，而外壳主要由亲水性聚烯烃组成。乳胶中聚丙烯醛的显著变化（从0.03到0.28）对外壳组成的影响较小（分别从0.5到0.84）。乳胶颗粒表面光滑，2,4-二硝基苯肼可渗透至1.5 ~ 3.5埃深度。这些聚（苯乙烯/丙烯醛）乳胶能够在1平方米的乳胶表面结合约3毫克的人球蛋白或约1毫克的人血清白蛋白。
The poly(styrene/acrolein) latexes were synthesized in an emulsifier-free emulsion-precipitation polymerization. Monodisperse particles from 0.30 mum to 0.52 mum, depending on the acrolein monomer feed, were obtained. More acrolein in the monomer feed yielded latex particles with smaller diameters. Analyses indicate that the particles have a core-shell morphology. The core is rich in the hydrophobic (polystyrene) component whereas the shell is composed mainly of hydrophilic polyacrolein. Significant changes in polyacrolein in the latexes (from 0.03 to 0.28) has less influence on the composition of the shell (from 0.5 to 0.84, respectively). The surface of the latex particles is smooth and can be penetrated by 2,4-dinitrophenyl hydrazine to the depth from 1.5 to 3.5 angstrom. These poly(styrene/acrolein) latexes are capable of binding ca. 3 mg of human globulins or ca. 1 mg of human serum albumin on 1 m2 of the latex surface.