Structure formation in linear precision and comb-like polymers under external constraints: Influence of shear fields and interfaces (B14)

外部约束下线性精密和梳状聚合物的结构形成：剪切场和界面的影响 (B14)

• 批准号: 276281020
• 金额: --
• 依托单位: Fraunhofer-Institut für Mikrostruktur von Werkstoffen und Systemen (IMWS)
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/276281020?language=en
• 关键词: Structure; formation; linear; precision; comb

Precision polymers composed of long methylene sequences and ring-like defects are an interesting class of materials for thermoplastic composites containing continuous fibers for light weight applications. Like in comb-like polymers, different lamellar structures with spacings in the range 2-4 nm where nanodomains containing rings or CH2 units alternate can form. Central aim is to study the influence of (i) shear fields and (ii) interfacial constraints on structure formation, morphology orientation and anisotropic properties of linear precision and related polymers. Similarities and differences between precision and comb-like polymers are consid¬ered.

由长的亚甲基序列和环状缺陷组成的精密聚合物是一类有趣的材料，用于含有轻质应用的连续纤维的热塑性复合材料。就像在梳状聚合物中一样，可以形成不同的层状结构，其间距在2-4 nm范围内，其中包含环或CH2单元的纳米结构域交替。主要目的是研究(I)剪切场和(Ii)界面约束对线性精密及相关聚合物的结构形成、形态取向和各向异性性能的影响。比较了精密聚合物和梳状聚合物的异同。