多氟醇对聚乙烯醇冷凝胶特性的影响

IF 0.6 4区化学 Q4 CHEMISTRY, APPLIED Russian Journal of Applied Chemistry Pub Date : 2024-06-10 DOI:10.1134/S1070427223100038

V. N. Manzhai, M. S. Fufaeva, V. G. Bondaletov

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引用次数: 0

摘要

摘要研究了在聚乙烯醇水溶液中添加含氟醇对冷冻-解冻循环后获得的弹性低温复合材料的流变学和物理化学特性的影响。三元低温凝胶（聚乙烯醇-水-1,1,7-三氢十二氟庚醇）的弹性模量是二元低温凝胶（聚乙烯醇-水）的 2 倍。随着含氟醇分子质量的增加，低温凝胶的弹性模量从 65 千帕增加到 80 千帕。氟化醇在冷凝胶基质中的存在使材料具有疏水性，与不含添加剂的冷凝胶相比，干燥后的样品不会燃烧。

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Effect of Polyfluorinated Alcohols on Properties of Polyvinyl Alcohol Cryogels

The effect that additions of fluorinated alcohols to an aqueous solution of polyvinyl alcohol exert on the rheological and physicochemical properties of elastic cryocomposites obtained after the freezing–thawing cycle was studied. The elastic modulus of the ternary cryogel (polyvinyl alcohol–water–1,1,7-trihydrododecafluoroheptyl alcohol) is 2 times higher than that of the binary cryogel (polyvinyl alcohol–water). With an increase in the molecular mass of fluorinated alcohols, the elastic modulus of cryogels increases from 65 to 80 kPa. The presence of fluorinated alcohols in the cryogel matrix imparts hydrophobic properties to the material, and the dried samples, in contrast to the cryogels without additives, do not burn.

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来源期刊

Russian Journal of Applied Chemistry 化学-应用化学

CiteScore

1.60

自引率

11.10%

发文量

审稿时长

2-4 weeks

期刊介绍： Russian Journal of Applied Chemistry (Zhurnal prikladnoi khimii) was founded in 1928. It covers all application problems of modern chemistry, including the structure of inorganic and organic compounds, kinetics and mechanisms of chemical reactions, problems of chemical processes and apparatus, borderline problems of chemistry, and applied research.