Sуnthesis研究了萜烯-甲基丙烯酸共聚物及其在阳离子表面活性剂存在下对无机分散体稳定性的影响

Q4 Chemistry
A. Vorobiev, S. V. Bucha, E. Vorobieva, N. Krutko, Yu. V. Lipai, M. Astakhova
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引用次数: 0

摘要

甲基丙烯酸与天然萜烯单体(α-蒎烯)的共聚物β蒎烯;合成了分子量为(0.3-0.5)∙104,羧基含量为14.5 - 16.3%的∆3-karene。对于合成的共聚物,确定了流体动力学半径和表征聚合物链柔韧性的库恩段,以及水和盐水溶液中的哈金斯常数,以及形成超分子结构的浓度区域。在阳离子表面活性剂(苯并氯铵,Hyamine)存在的情况下,根据体系中共聚物的浓度,聚合物-表面活性剂络合物以可溶性和不溶性形式形成。研究表明,随着聚合物链中非极性基团含量的增加,水溶性配合物对碳酸钙水分散体的稳定作用的有效性也随之增加。提出了一种阳离子表面活性剂(Hyamine)作为沉淀剂用于定量测定含水和盐水介质中含羧基聚合物的方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Sуnthesis of terpene–methacrylic acid copolymers and their effect on the stability of inorganic dispersions in the presence of cationic surfactants
Copolymers of methacrylic acid and natural terpene monomers (α-pinene; β-pinene; ∆3-karene) with the molecular weight of (0.3–0.5)∙104 and a content of carboxyl groups of 14.5–16.3 % were synthesized. For the synthesized copolymers, hydrodynamic radius and the Kuhn segment, which characterizes flexibility of a polymer chain, were determined, as well as the Huggins constant in aqueous and saline solutions, and concentration regions for formation of supramolecular structures. In the presence of a cationic surfactant (benzetonium chloride, Hyamine), depending on the concentration of copolymers in the system, polymer-surfactant complexes were formed in soluble and insoluble forms. It has been shown that the effectiveness of the stabilizing action of soluble complexes with respect to an aqueous dispersion of calcium carbonate increases with an increase in the content of nonpolar groups in the polymer chain. A cationic surfactant (Hyamine) has been proposed as a precipitant in the method for the quantitative determination of carboxyl-containing polymers in aqueous and saline media. 
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CiteScore
0.30
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