Coacervation of copolymer of diallyldimethylammonium chloride and sodium styrenesulfonate aqueous solution
Coacervation of copolymer of diallyldimethylammonium chloride and sodium styrenesulfonate aqueous solution
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二烯丙基二甲基氯化铵与苯乙烯磺酸钠水溶液共聚物的凝聚
DOI：
10.1080/10601325.2017.1400893
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发表时间：
2018-02
期刊：
影响因子：
--
通讯作者：
Lei Zhai
中科院分区：
文献类型：
--
作者：
Yang Li;Shenwen Fang;Xiujun Wang;Lei Zhai
多电解质配合物的凝聚行为已被许多论文研究。对两性聚合物的凝聚行为的研究很少。本研究合成了二烯基二甲基氯化铵（DM）与苯乙烯磺酸钠（SS）的两性共聚物（该共聚物记为DMS）， SS与DM的摩尔含量为0 ~ 10%。首先，对DMS进行了静态光散射、FTIR、1H-NMR、TGA和DSC表征。然后，研究了其相和凝聚行为。浊度被用作凝聚形成的指标。结果表明，当SS含量大于4 mol%时，一定浓度的去离子水中会形成DMS凝聚体。温度和pH对DMS凝聚物的形成没有影响。同时，盐对DMS的凝聚有很大的影响。与其他多电解质配合物不同，Na2SO4、Na2HPO4、NaCOOCH3、柠檬酸钠和NaI不能阻止DMS凝聚的形成。然而，NaCl、NaNO3、NaBr和NaSCN的加入可以阻止凝聚的形成。这种影响不能用霍夫迈斯特式的行为来描述。表面张力和荧光光谱结果表明，静电相互作用和分子间疏水相互作用是DMS凝聚形成的驱动力。
ABSTRACT Coacervate behavior of polyelectrolyte complexes has been studied by many papers. Few studies have focused on the coacervate behavior of amphoteric polymer. In this study, amphoteric copolymer of diallyldimethylammonium chloride (DM) and sodium styrenesulfonate (SS) (the copolymer was noted as DMS) was synthesized with the mole content of SS to DM ranged from 0 to 10%. Firstly, DMS was characterized by static light scattering, FTIR, 1H-NMR, TGA and DSC. Then, its phase and coacervate behaviors were studied. Turbidity was utilized as an indicator for the coacervate formation. It was found that when the SS content was more than 4 mol%, DMS coacervate would be formed in deionized water at a certain concentration. Temperature and pH have no effect on the formation of DMS coacervate. Meanwhile, salts has a great influence on the DMS coacervation. Unlike the results of the other polyelectrolyte complexes, Na2SO4, Na2HPO4, NaCOOCH3, sodium citrate and NaI cannot prevent the DMS coacervate formation. However, the addition of NaCl, NaNO3, NaBr and NaSCN can prevent the coacervate formation. The influence cannot be described by Hofmeister-like behavior. Results of surface tension and fluorescence spectrum presented that the driving forces to formation of DMS coacervate are the electrostatic interaction and the intermolecular hydrophobic interaction.
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DOI：
--
发表时间：
2001
期刊：
--
影响因子：
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作者：
Y. Hui
通讯作者：
Y. Hui
DOI：
10.1016/j.colsurfa.2016.09.031
发表时间：
2016-11
期刊：
Colloids and Surfaces A: Physicochemical and Engineering Aspects
影响因子：
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作者：
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DOI：
10.1080/10601325.2016.1224630
发表时间：
2016-09
期刊：
Journal of Macromolecular Science, Part A
影响因子：
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作者：
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通讯作者：
Jianquan Tan;Weiqu Liu;Zhengfang Wang
影响因子：
11.9
作者：
Lin, Zhenhua;Chang, Jingjing;Zhu, Chunxiang
通讯作者：
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影响因子：
3.4
作者：
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通讯作者：
Yanpu Zhang;E. Yıldırım;H. Antila;Luis D. Valenzuela;M. Sammalkorpi;J. Lutkenhaus