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Molecular Entanglement and Electrospinnability of Biopolymers
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树突型高分支聚合物的结构和粘度研究作为粘度指数改善剂
Reham I El-Shazly1, Rasha S Kamal2, Reem K Farag2
1Department of Petroleum Applications, Egyptian Petroleum Research Institute, Nasr City, Cairo, Egypt. reham_chemist21@yahoo.com.
BMC chemistry
|May 30, 2024
概括
合成的星状聚合物使用二甲基烯酸和三乙烯四胺显示承诺作为粘度指数改善剂. 这些高分支聚合物中较高的三乙烯四胺含量显著提高了粘度指数 (VI) 值.
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:
- 超分支聚合物由于其复杂的架构而具有独特的特性.
- 提高粘度指数的提高剂对于滑剂在不同温度范围内的性能至关重要.
研究的目的:
- 为了合成具有不同终点的恒星状超分支聚合物.
- 评估这些聚合物作为粘度指数改善剂的潜力 (VII).
主要方法:
- 聚合物的单合成,使用多德烯酸和三乙烯四胺.
- 通过FTIR,1HNMR,DLS和凝浸透色谱进行表征.
- 风湿学研究评估牛顿行为和粘度指数增强.
主要成果:
- 成功合成和表征具有多种末端组的超分支聚合物.
- 证明增加的三乙烯四胺含量与较高的粘度指数值相关.
- 为聚合物配方 (E) 获得了212的最大VI;所有聚合物都表现出牛顿行为.
结论:
- 合成的高分支聚合物是有效的粘度指数改善剂.
- 调整组合,特别是增加三乙烯四胺,可以提高VI的性能.
- 这种类似恒星的超分支聚合物表现出可预测的牛顿流体特性.
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