Water-Soluble Hybrid Core–Shell Nanoparticles with Titanium Dioxide Core and Poly(Acrylic Acid) Shell

IF 1 4区 化学 Q4 POLYMER SCIENCE Polymer Science, Series B Pub Date : 2024-02-09 DOI:10.1134/s156009042360033x
E. L. Krasnopeeva, G. G. Panova, S. G. Laishevkina, E. Yu. Melenevskaya, N. V. Zakharova, E. N. Vlasova, A. V. Yakimansky
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Abstract

Synthesis of new water-soluble hybrid core–shell titanium dioxide‒triethoxyvinylsilane‒poly(acrylic acid) nanoparticles consisting of titanium dioxide core with modified surface, polyacrylic acid shell, has been considered. The titanium dioxide‒triethoxyvinylsilane‒poly(acrylic acid) nanoparticles have been synthesized in two stages. At the first stage, the titanium dioxide nanoparticles surface has been modified with triethoxyvinylsilane. The so introduced surface vinyl groups of the titanium dioxide‒triethoxyvinylsilane nanoparticles have been used to graft poly(acrylic acid). To do so, free-radical polymerization of acrylic acid in the presence of the titanium dioxide‒triethoxyvinylsilane nanoparticles has been performed at the second stage. Molecular parameters of the obtained titanium dioxide‒triethoxyvinylsilane‒poly(acrylic acid) nanoparticles have been determined by means of static and dynamic light scattering, and their structure has been confirmed by means of infrared spectroscopy. The proposed procedure of modifying the surface of titanium dioxide opens up the possibility of obtaining water-soluble materials based on it for various applications.

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具有二氧化钛核和聚(丙烯酸)壳的水溶性混合核壳纳米粒子
摘要 研究了新型水溶性混合核壳二氧化钛-三乙氧基乙烯基硅烷-聚丙烯酸纳米粒子的合成,该纳米粒子由具有改性表面的二氧化钛核和聚丙烯酸壳组成。二氧化钛-三乙氧基乙烯基硅烷-聚丙烯酸纳米粒子分两个阶段合成。第一阶段,用三乙氧基乙烯基硅烷修饰二氧化钛纳米粒子表面。二氧化钛-三乙氧基乙烯基硅烷纳米粒子表面的乙烯基被用来接枝聚丙烯酸。为此,在第二阶段,在二氧化钛-三乙氧基乙烯基硅烷纳米粒子的存在下对丙烯酸进行自由基聚合。获得的二氧化钛-三乙氧基乙烯基硅烷-聚丙烯酸纳米粒子的分子参数已通过静态和动态光散射法测定,其结构已通过红外光谱法确认。所提出的二氧化钛表面改性程序为在其基础上获得各种应用的水溶性材料提供了可能。
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来源期刊
Polymer Science, Series B
Polymer Science, Series B 化学-高分子科学
CiteScore
1.80
自引率
8.30%
发文量
58
审稿时长
>0 weeks
期刊介绍: Polymer Science, Series B is a journal published in collaboration with the Russian Academy of Sciences. Series B experimental and theoretical papers and reviews dealing with the synthesis, kinetics, catalysis, and chemical transformations of macromolecules, supramolecular structures, and polymer matrix-based composites (6 issues a year). All journal series present original papers and reviews covering all fundamental aspects of macromolecular science. Contributions should be of marked novelty and interest for a broad readership. Articles may be written in English or Russian regardless of country and nationality of authors. All manuscripts are peer reviewed
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