Preparation of core–shell coagulates by hydrophobic heterocoagulation of micron-sized poly(methyl methacrylate) and submicron-sized poly(styrene) particles
Preparation of core–shell coagulates by hydrophobic heterocoagulation of micron-sized poly(methyl methacrylate) and submicron-sized poly(styrene) particles
复制标题
微米级聚甲基丙烯酸甲酯和亚微米级聚苯乙烯颗粒疏水杂聚制备核壳混凝物
DOI：
10.1016/j.colsurfa.2010.01.015
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
T. Wakiya
中科院分区：
文献类型：
--
作者：
T. Taniguchi;T. Ogawa;Y. Kamata;Shotaro Kobaru;N. Takeuchi;Michinari Kohri;T. Nakahira;T. Wakiya
采用非带电聚甲基丙烯酸甲酯（PMMA）核与带正电聚苯乙烯（PSt）壳的疏水异聚法制备了核-壳混凝剂。发现NaCl的加入和混凝温度升高到壳粒玻璃化转变温度（Tg）附近是混凝成功的关键。用芘标记的核和萘标记的壳粒子进行的荧光共振能量转移（FRET）实验表明，当混凝剂制备在核和壳粒子的Tgs或略高于Tgs时，核和壳粒子界面处聚合物链的相互扩散最有效。
Core–shell coagulates were prepared by hydrophobic heterocoagulation between non-charged poly(methyl methacrylate) (PMMA) core and cationically charged polystyrene (PSt) shell particles. Addition of NaCl and elevation of coagulation temperature to the vicinity of the glass transition temperature (Tg) of the shell particles are found to be keys to successful heterocoagulation. Fluorescence resonance energy transfer (FRET) experiments using pyrene-labeled core and naphthalene-labeled shell particles showed that interdiffusion of the polymer chains at the interface between the core and shell particles is most effective when coagulates were prepared at or slightly above the Tgs of both core and shell particles.
影响因子：
2.4
作者：
K. Yamaguchi;M. Ito;T. Taniguchi;S. Kawaguchi;K. Nagai
通讯作者：
K. Yamaguchi;M. Ito;T. Taniguchi;S. Kawaguchi;K. Nagai