The spherulite growth behaviour of hard segment has been studied by SALS and other techniques for polyester-polyether block copolymers with low hard segment content.
采用SALS等方法研究了低硬段含量的聚酯-聚醚多嵌段共聚物中硬段结晶时的球晶生长规律。
The effects of hard segment structure, hard segment content and chain extender with different structure on physical mechanical properties of dry films and water absorption were studied.
研究了不同硬段结构和硬段含量和扩链剂对其干膜物理机械性能和吸水率的影响。
The results showed that increase hard segment content, soft segment sequence length and ionic group to be favourable for rising tensile strength.
研究表明：硬链段含量、软链段链长的提高和离子基团的增加均有利于拉伸强度的提高。
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