Investigation of the Influence of UV Radiation on Compositions of Polylactide with Graphite Nanoplatelets

IF 1.4 4区 化学 Q4 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL Russian Journal of Physical Chemistry B Pub Date : 2024-05-29 DOI:10.1134/S1990793124020088
M. M. Gasymov, S. Z. Rogovina, O. P. Kuznetsova, E. O. Perepelitsyna, V. G. Shevchenko, S. M. Lomakin, A. A. Berlin
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Abstract

Composites of polyether polylactide (PLA) synthesized from natural raw materials with graphite nanoplatelets (GNPs), which represent a new type of composite materials based on biodegradable polymers, are obtained by the solid-phase method under the action of shear deformations. The porosity of the composites is evaluated and their electrical and mechanical properties are studied. The effect of UV radiation on the molecular weight and molecular weight distribution of PLA in PLA–GNP composites of different composites is investigated using the method of exclusion chromatography, and the effect of GNP nanofiller content on the change of their mechanical characteristics in the process of radiation is shown.

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研究紫外线辐射对聚乳酸与石墨纳米片组成的影响
摘要 在剪切变形作用下,通过固相法获得了由天然原料合成的聚醚聚乳酸(PLA)与石墨纳米颗粒(GNPs)的复合材料,这是一种基于生物可降解聚合物的新型复合材料。对复合材料的孔隙率进行了评估,并对其电气和机械性能进行了研究。利用排阻色谱法研究了紫外辐射对不同复合材料中 PLA-GNP 复合材料中 PLA 的分子量和分子量分布的影响,并显示了 GNP 纳米填料含量对辐射过程中其力学特性变化的影响。
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来源期刊
Russian Journal of Physical Chemistry B
Russian Journal of Physical Chemistry B 化学-物理:原子、分子和化学物理
CiteScore
2.20
自引率
71.40%
发文量
106
审稿时长
4-8 weeks
期刊介绍: Russian Journal of Physical Chemistry B: Focus on Physics is a journal that publishes studies in the following areas: elementary physical and chemical processes; structure of chemical compounds, reactivity, effect of external field and environment on chemical transformations; molecular dynamics and molecular organization; dynamics and kinetics of photoand radiation-induced processes; mechanism of chemical reactions in gas and condensed phases and at interfaces; chain and thermal processes of ignition, combustion and detonation in gases, two-phase and condensed systems; shock waves; new physical methods of examining chemical reactions; and biological processes in chemical physics.
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