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首页> 外文期刊>Journal of Applied Polymer Science >Solubilization Properties of N-substituted Amphiphilic Acrylamide Copolymers
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Solubilization Properties of N-substituted Amphiphilic Acrylamide Copolymers

机译：N-取代的两亲丙烯酰胺共聚物的增溶性能

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摘要

Amphiphilic copolymers of sodium 2-acrylamido-2-methylpropanesulfonate (AMPS) and dodecylmethacrylamide (DodMAAm) were synthesized. The ratio of the reduced viscosities of these copolymers in water and in 0.2 mol/L NaCl solution shows that these copolymers containing from 50 to 66 mol % of DodMAAm have a relatively small and constant hydrodynamic size. Viscometric and static light scattering measurements indicated that the copolymers shrinked and intermolecularly associated forming interchain aggregates in water through hydrophobic interactions. These copolymers solubilize dl-#alpha#-tocopherol acetate, giving a transparent solution; but the solution became turbid in a month dure to increasing intermolecular association. To suppress this excess intermolecular association, polymers with four different crosslinking ratios were synthesized. The polymer of a crosslinking ratio of 0.5 mol % showed a strong solubilization property, resulting in transparent solution with an improved stability. The fluorescence spectra of pyrene in the polymer solution proved that these copolymers could form strong hydrophobic domains, which solubilize a hydrophobic compound, in less than 30 w/w % ethanol solution. These copolymers could have an excellent function of sustained release of perfume as a novel function.
机译：合成了2-丙烯酰胺基-2-甲基丙烷磺酸钠（AMPS）和十二烷基甲基丙烯酰胺（DodMAAm）的两亲共聚物。这些共聚物在水中和在0.2 mol / L NaCl溶液中降低的粘度的比率表明，这些含有50至66 mol％DodMAAm的共聚物具有相对较小且恒定的流体动力学尺寸。粘度和静态光散射测量表明，该共聚物在水中通过疏水相互作用收缩并分子间缔合形成链间聚集体。这些共聚物使dl-＃α＃-生育酚乙酸酯增溶，得到透明溶液。但是由于分子间缔合的增加，溶液在一个月内变得浑浊。为了抑制这种过量的分子间缔合，合成了具有四种不同交联比的聚合物。交联比为0.5mol％的聚合物显示出很强的增溶性能，得到具有改善的稳定性的透明溶液。 the在聚合物溶液中的荧光光谱证明，这些共聚物可以在小于30 w / w％的乙醇溶液中形成强疏水域，从而溶解疏水化合物。这些共聚物可以具有优异的持续释放香料的功能，这是一种新颖的功能。

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