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首页> 外文期刊>Journal of Macromolecular Science. Pure and Applied Chemistry >The effect of copolymer composition on surface free-energy of poly(2-hydroxyethyl methacrylate-crotonic acid) copolymers
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The effect of copolymer composition on surface free-energy of poly(2-hydroxyethyl methacrylate-crotonic acid) copolymers

机译：共聚物组成对聚（甲基丙烯酸2-羟乙酯-巴豆酸）共聚物表面自由能的影响

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摘要

Poly(2-hydroxyethyl methacrylate-crotonic acid) P(HEMA/CrA) copolymers with varying compositions were prepared from ternary mixtures of 2-hydroxyethyl methacrylate (HEMA)/crotonic acid (CrA)/water by using Co-60 gamma-rays. The wetting forces were determined according to the Wilhelmy Plate Technique. Di-iodomethane, ethylene glycol, and formamide were used as probe liquids. Lifshitz-van der Waals surface energy components, Lewis acid-base surface components, and total surface energies were calculated using van Oss et al. methodology. It was determined that Lifshitz-van der Waals component (gamma(S)(LW)) of the copolymers did not differ much from the copolymer composition. However, the electron-donor surface free energy components (gamma(S)(-)) of the copolymers were decreased considerably with the increase of the CrA content of the copolymers, the surfaces of these copolymers were still found to have a basic character. [References: 21]
机译：通过使用Co-60γ射线由甲基丙烯酸2-羟乙酯（HEMA）/巴豆酸（CrA）/水的三元混合物制备具有不同组成的聚（甲基丙烯酸2-羟乙酯-巴豆酸）P（HEMA / CrA）共聚物。根据Wilhelmy Plate Technology确定润湿力。二碘甲烷，乙二醇和甲酰胺用作探针液。 Lifshitz-van der Waals表面能成分，Lewis酸碱表面成分和总表面能使用van Oss等人的方法计算得出。方法。可以确定，共聚物的Lifshitz-van der Waals组分（γ（S）（LW））与共聚物组成相差不大。然而，随着共聚物中CrA含量的增加，共聚物的电子给体表面自由能组分（γ（S）（-））显着降低，这些共聚物的表面仍然具有基本特性。 [参考：21]

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