通过固态聚合技术对高分子量生物基聚乙烯酸盐的单体的影响研究
Johan Stanley1, Eleftheria Xanthopoulou1, Margaritis Kostoglou2
1Laboratory of Chemistry and Technology of Polymers and Colors, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece.
Polymers
|December 17, 2024
概括
高分子量生物基聚乙烯酸 (PEF) 通过固态聚合 (SSP) 合成. 优化的SSP条件显著改善了PEF环境.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 可持续的高分子.
背景情况:
- 生物基聚乙烯酸 (PEF) 是包装中化石基聚合物的一个有希望的替代品.
- 商业化需要使用高效的方法合成高分子量PEF.
- 固态聚合 (SSP) 是聚合物修饰的一个关键技术.
研究的目的:
- 通过固态聚合 (SSP) 合成高分子量聚乙烯2,5-二碳酸盐 (PEF).
- 调查SSP变化的温度和反应时间对PEF属性的影响.
- 为了比较从2,5-二碳酸 (FDCA) 和二甲基-2,5-二碳酸盐 (DMFD) 合成的PEF.
主要方法:
- 使用FDCA或DMFD进行PEF合成.
- 固态聚合 (SSP) 在不同的温度和时间.
- 使用内在粘度 ([η]),氧基末组度 (-COOH),差分扫描热度计 (DSC) 和X射线衍射 (XRD) 的表征.
主要成果:
- SSP增加了PEF样本的化温度和结晶度,反应时间延长和温度更高.
- 内在粘度和分子量随着SSP持续时间的延长和温度的提高而增加.
- 来自DMFD的PEF由于单体纯度和较低的初始结晶度,显示了增强的结晶和分子量.
结论:
- SSP是提高PEF分子量和热性质的有效方法.
- 优化SSP参数对于实现所需的PEF特征至关重要.
- 来自DMFD的PEF通过SSP提供了卓越的性能改进.
关键词:
2,5-二碳酸二氧化碳酸是什么?双甲基2,5-二碳酸盐二甲基2,5-二甲基二碳酸盐生物基聚合物生物基聚合物聚乙烯2,5-二碳酸盐) 是一种聚乙烯酸) 是一种聚乙烯酸.固态聚合物化固态聚合物化热性质 热性质 热性质更多相关视频
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