用于混合乳颗粒的生物衍生硫乙烯乳液聚合.
Melissa K Stanfield1, Claudia A Weerts1, Mahesh Prasad Timilsina1
1School of Natural Sciences - Chemistry, University of Tasmania, Hobart, Tasmania 7001, Australia.
Biomacromolecules
|September 20, 2024
概括
生物衍生单体被用来通过乳液聚合制造来制造聚 (thioether) 颗粒. 然后,这些粒子被用来形成具有可调节性质的核心外结构,提供可持续的聚合物材料.
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
- 可持续化学 可持续化学
背景情况:
- 在聚合物合成中,生物衍生化合物为以石油为基础的原料提供可持续的替代品.
- 乙烯点击化学为聚合物网络的形成提供了有效的路线.
- 乳液聚合是一种生产聚合物纳米粒子和乳的多功能技术.
研究的目的:
- 合成新型生物衍生单体从糖 (LGA),糖 (LGO) 和异化物.
- 为了研究这些单体的醇-乙烯乳液聚合,以形成聚 () 颗粒.
- 使用这些生物衍生颗粒制备和表征核心外聚合物乳.
主要方法:
- 用4-丁酸对生物衍生化合物 (LGA,LGO,异化物) 进行修改.
- Ab initio 乳液聚合,使用滴醇和硫酸盐启动剂.
- styrene 或甲基甲酸盐在生物衍生种子颗粒上的种子乳液聚合.
- 使用电子显微镜进行表征和粒子形态学的理论建模.
主要成果:
- 从生物来源成功合成了可聚合的单体.
- 聚乙烯粒子形成,其粒子大小受单体结构的影响.
- 核心外乳颗粒与独特的高Tg核心和低Tg生物衍生外成功地准备好了.
- 实验结果与核心外形态学的理论预测保持一致.
结论:
- 生物衍生单体可以通过乙烯乳液聚合有效地聚合.
- 开发的方法允许创建具有可调节性质的核心外聚合物乳.
- 这种方法为实现可持续和功能性的聚合物材料提供了一条道路.
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