高分支聚胺无水化物-Co-曼尼托酸盐):合成,表征和热特性
Mahir A Jalal1, Einas A Abood1, Zainab J Sweah1
1Department of Polymer Technology, Polymer Research Center, University of Basrah, Basrah 61004, Iraq.
Polymers
|March 13, 2025
概括
这项研究使用D-曼尼托尔合成了分支的多聚 ((阿迪皮无水化物-co-曼尼托尔酸盐) 共聚合物. 增加的曼尼托尔含量提高了热稳定性和降解概况,由先进的分析技术证实.
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
背景情况:
- 聚酸) 是一种具有改造潜力的线性聚合物.
- 分支聚合物可以改变其物理和热性质.
- D-曼尼托是适合于聚合物改性的一种生物相容的糖醇.
研究的目的:
- 合成新型分支聚合物 (?? 酸无水化物-co-曼尼托尔酸盐) 共聚合物.
- 为了研究变化的D-曼尼托尔含量对共聚合物特性的影响.
- 评估合成共聚合物的热特性和降解行为.
主要方法:
- 使用D-曼尼托和多酸化物进行缩凝聚聚合).
- 通过FT-IR,13C-NMR和GPC进行净化和表征.
- 使用TGA,DTG和DSC进行热分析.
- 使用弗林-沃尔-奥扎瓦和基辛格方法进行动力分析.
主要成果:
- 通过光谱学方法证实了有分支的聚 (?? 基无水化物-co-mannitol基酸盐) 的成功合成.
- 用GPC分析了分子重量特征.
- 热降解发生在多个阶段,DSC识别了曼尼含量.
- 弗林-沃尔-奥扎瓦方法提供了准确的动力学数据 (R2高达99.3%).
- 增加的曼尼托含量与改善的热稳定性正相关.
结论:
- 用D-曼尼托尔分枝的拟议机制是有效的.
- 合成的共聚合物表现出基于曼尼托含量的可调节的热特性.
- 弗林-沃尔-奥扎瓦方法对于分析这些共聚物体的热分解动力学是有效的.
- 由此产生的分支共聚物表现出增强的热稳定性,使其对各种应用具有前景.
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