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Intracrystalline Dynamics in Oligomer‐Diluted Poly(Ethylene Oxide)
Macromolecular Chemistry and Physics ( IF 2.5 ) Pub Date : 2019-11-26 , DOI: 10.1002/macp.201900393
Mareen Schäfer 1 , Niklas Wallstein 1 , Martha Schulz 2 , Thomas Thurn‐Albrecht 2 , Kay Saalwächter 1
Affiliation  

Solid‐state creep, ductility, and drawability are relevant mechanical properties of “crystal‐mobile” polymers, related to a large‐scale chain transport through the crystal, which is in turn mediated by intracrystalline monomer jumps. Here, high‐Mw poly(ethylene oxide) is used as a well‐controlled model system, modulating the properties of the amorphous phase by diluting with a non‐crystallized oligomer. Faster intracrystalline motions are found upon oligomer addition, indicating little changes in the fold surface and a dominant influence of the somewhat reduced lamellar thickness.

中文翻译:

低聚物稀释的聚环氧乙烷的晶内动力学

固态蠕变,延展性和可拉伸性是“晶体移动”聚合物的相关机械性能,与通过晶体的大规模链传输有关,而晶体内部的链跃迁又由晶体内单体跳跃介导。在这里,高中号瓦特聚(环氧乙烷)被用作一个控制良好的模型系统,通过用非结晶的低聚物稀释调制非晶相的性质。加入低聚物后发现更快的晶内运动,这表明折叠表面几乎没有变化,并且是层状厚度略有减少的主要影响。
更新日期:2019-11-26
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