使用环开聚合 (ROP) 方法生产多乳酸,使用易斯酸表面活性剂联合铁 (Fe) 催化剂 (Fe(DS) 3)
T Widjaja1, N Hendrianie1, S Nurkhamidah1
1Chemical Engineering Department, Institut Teknologi Sepuluh Nopember, Sukolilo, Surabaya, 60111, Indonesia.
Heliyon
|July 31, 2023
概括
新型LASC Fe(DS) 3催化剂通过优化的环开放聚合过程增强了多乳酸 (PLLA) 生产. 与传统方法相比,这种基于铁的催化剂表现出优越的性能,产生了具有更好的热稳定性和分子量的PLLA.
科学领域:
- 聚合物化学 聚合物化学
- 催化剂是一种催化剂.
- 材料科学 材料科学 材料科学
背景情况:
- 聚乳酸 (PLLA) 是一种可生物降解的聚合物,具有越来越多的应用.
- 有效的PLLA合成通常依赖于有效的环开聚合催化剂 (ROP).
- 基于铁的催化剂为可持续和成本有效的PLLA生产提供了潜力.
研究的目的:
- 用铁金属 (Fe) 合成和表征一种新的LASC催化剂.
- 为了评估Fe(DS) 3催化剂在l-乳到PLLA的ROP中的有效性.
- 为了比较Fe(DS) 3与FeCl3在PLLA合成中的性能.
主要方法:
- 合成了LASC Fe (((DS) 3催化剂.
- 多步骤的工艺:乳酸脱水,多重凝结,脱聚合和ROP.
- 使用卡尔-菲舍尔,FTIR,1HNMR,GPC,TGA和XRD进行了表征.
主要成果:
- Fe(DS) 3催化剂具有无形性 (24%结晶性) 和高达180°C的良好热稳定性.
- 在每一个阶段,FTIR分析证实了ROP流程的成功.
- 用Fe(DS) 3生产的PLLA显示了与FeCl3.3相比的可比或改进的特性 (晶度,Tm,Td,分子量).
结论:
- 拉斯克Fe(DS) 3催化剂对通过ROP合成PLLA是有效的.
- 在PLLA生产中,Fe(DS) 3的性能优于FeCl3或相当于它.
- 这项研究强调了Fe(DS) 3作为可持续PLLA制造的有效催化剂的潜力.
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