高等学校化学学报2012，Vol.33Issue(1)：172-175,4.DOI:10.3969/j.issn.0251-0790.2012.01.029
相容的聚甲基丙烯酸甲酯/[ C12MIM][ PF6]离子液体体系在超临界CO2中的发泡性能
Foaming Behavior of Compatible PMMA/[ C12MIM] [ PF6 ]System by Supercritical CO2
摘要
Abstract
A series of compatible blends of poly (methyl methacrylate) with an ionic liquid (IL), 1-dodecyl-3-methylimidazolium hexafluorophosphate[C12MIM] [PF6], was prepared by melt blending. The blends were foamed with supercritical CO2 as the blowing agent via a rapid pressure-quenching process. By adding IL, the C02 absorption of PMMA was increased, and the glass transition temperature was lowered. The effects of IL on the foaming behavior of PMMA depended on foaming conditions. When the foaming temperature and pressure were low, pure PMMA could not be foamed, while the addition of IL facilitated the formation of cells. On the other hand, pure PMMA could be foamed at higher temperatures and pressures, and adding IL further increased the cell size of the foamed samples; however, the cell size was still within the micron-meter scale and had a narrow distribution.关键词
[ C12MIM][ PF6]离子液体/聚甲基丙烯酸甲酯/超临界CO2/发泡性能Key words
[C12MIM] [PF6] ionic liquid/ Poly ( methyl methacrylate)( PMMA)/ Supercritical carbon dioxide/ Foaming behavior分类
化学化工引用本文复制引用
仝芳芳,徐鸿,余坚,文利雄,张军,何嘉松..相容的聚甲基丙烯酸甲酯/[ C12MIM][ PF6]离子液体体系在超临界CO2中的发泡性能[J].高等学校化学学报,2012,33(1):172-175,4.基金项目
国家自然科学基金(批准号:50873113,20821004)资助. （批准号:50873113,20821004）
