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Phase Diagrams of Semicrystalline Polymer–Crystalline Substances: Polyolefins–1,2,4,5-Tetrachlorobenzeneстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 24 мая 2017 г.
- Авторы: Pochivalov Konstantin V., Kudryavtsev Yaroslav V., Basko Andrey V., Lebedeva Tatyana N., Golovanov Roman Y.
- Журнал: Journal of Macromolecular Science - Physics
- Том: 54
- Номер: 12
- Год издания: 2015
- Издательство: Marcel Dekker Inc.
- Местоположение издательства: United States
- Первая страница: 1427
- Последняя страница: 1437
- DOI: 10.1080/00222348.2015.1094643
- Аннотация: The full phase diagrams of low-density polyethylene (LDPE), high-density polyethylene (HDPE), and isotactic polypropylene (i-PP) mixtures with 1,2,4,5- tetrachlorobenzene (TeCB), including the solubility curve of TeCB in a solid polymer, were constructed by an optical method. The diagrams contain a eutectic point that corresponds to the situation when the crystallization of TeCB out of its solution in a polyolefin is accompanied by the crystallization of monomer units of the macromolecules. As a result, the polymer acquires a gel structure with crystallites as crosslinks and amorphous regions saturated with TeCB. It is demonstrated that the eutectic point position on the phase diagram can be used for ranking polymers with respect to their thermodynamic affinity to a solvent. For the studied systems, the affinity to TeCB was decreased in the order i-PP, HDPE, and LDPE. Direct experimental evidence was obtained that TeCB crystals can be dissolved in a solid polymer via a vapor phase mechanism, which leads to the polymer amorphization.
- Добавил в систему: Кудрявцев Ярослав Викторович