含有基双酸连接体的金属上分子聚合物的结构和特性
Franziska Marx1, Malte Beccard1, Alessandro Ianiro1
1Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland.
Macromolecules
|October 2, 2023
概括
具有可调节性质的金属上分子聚合物 (MSP) 使用金属连接体复合物被制造出来. 这些先进的材料表现出基于金属离子选择的自我愈合能力和可适应的机械特性.
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
- 超分子化学 超分子化学
背景情况:
- 超分子聚合物的固态特性受到金属-连接体 (ML) 复合选择的影响.
- 不同的连接物和金属盐可以调整结构性,热性,机械性和粘弹性性能.
- 动态ML复合体使刺激反应功能,如自我愈合和可逆粘附在金属超分子聚合物 (MSPs).
研究的目的:
- 为了合成和表征MSP使用双联体6 - - - - - - - - - - - - - - - - - - - 甲基化) 化 (MBP).
- 研究不同过渡金属离子 (Zn2+,Fe2+,Ni2+) 对MSP形态和特性的影响.
- 探索刺激反应行为,特别是紫外线光引起的自我愈合.
主要方法:
- 聚乙烯-协同-丁) 电解质与MBP配体的终端功能化.
- 由此产生的宏观素与Zn2+,Fe2+或Ni2+三盐组合.
- 微相分离的特征,形态 (状,六角形),热过渡,机械性质和UV诱导的愈合.
主要成果:
- 所有合成的MSPs微相分成状或六角形态.
- 化过渡发生在200°C以下,使其易于再加工.
- 紫外线暴露导致缺陷的快速和完全治愈.
- 机械性能,如伸展性和抗拉强度,随着金属离子的变化而变化,影响远程秩序和动态.
结论:
- 基于MBP和各种过渡金属的MSP提供可调节性质和刺激响应性行为.
- 选择金属离子显著影响形态,机械性能和自我愈合效率.
- 这些材料对需要适应性和可修复性聚合物的应用具有前景.
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