生物降解的聚氨泡基于从纤维素及其基烯基衍生物中获得的聚合物
Renata Lubczak1, Małgorzata Kus-Liśkiewicz2, Jacek Lubczak1
1Department of Organic Chemistry, Faculty of Chemistry, Rzeszów University of Technology, Al. Powstańców Warszawy 6, 35-959 Rzeszów, Poland.
Materials (Basel, Switzerland)
|November 27, 2024
概括
合成了新的纤维素衍生聚合物,并用于制造刚性聚氨泡 (PUF). 这些可持续的PUF具有增强的耐热性和增强的压力强度,具有显著的生物降解潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续化学 可持续化学
背景情况:
- 开发可持续的替代石油基聚合物用于聚氨生产的替代品至关重要.
- 纤维素是一种丰富的生物聚合物,为聚合成提供可再生原料.
- 现有的纤维素改造方法在可扩展性和产品纯度方面存在挑战.
研究的目的:
- 通过新基化方法合成纤维素衍生聚.
- 描述合成的多聚醇及其物理性质.
- 生产和评估从这些新型聚合物中提取的刚性聚氨泡 (PUF).
主要方法:
- 用甘油醇和乙烯碳酸盐在三乙烯甘醇或水中的纤维素和 () 纤维素的基基化.
- 使用红外 (IR),1H核磁共振 (NMR) 和矩阵辅助激光脱/电离飞行时间 (MALDI ToF) 质谱法对聚合物的表征.
- 刚性聚氨泡 (PUF) 的合成及其物理性能,耐热性,压力强度和生物降解性的评估.
主要成果:
- 通过光谱分析证实了纤维素衍生聚合物的成功合成,显示了特征性乙烯基组带.
- 合成的多被用来制造硬的PUF,其密度,吸水率和收缩率与传统PUF相似.
- 新型PUF在热暴露后表现出优越的耐热性和更好的压力强度,以及显著的生物降解性 (一个月内超过50%).
结论:
- 纤维素衍生的聚醇可以通过基化有效合成,用于刚性PUF生产.
- 这些生物基PUF与传统PUF相比,提供了更好的热性能和机械性能.
- 开发的材料显示出有希望的生物降解性,有助于更可持续的聚合物解决方案.
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