摘要
长碳链聚酰胺(LCPA)作为聚酰胺的特殊品种,较长的亚甲基链和极性酰胺基团使其兼具聚烯烃和聚酰胺的双重特性.在加工或使用过程中,拉伸诱导结晶现象对长碳链聚酰胺及其共聚物的强度和弹性行为具有重要影响,深入认识其在外场下的微观结构响应对该材料的设计及制备具有重要意义.围绕拉伸诱导结晶作用,该专论主要基于本团队2010年以来在长碳链聚酰胺及其共聚物的拉伸诱导结晶工作,并综述了国内外的相关研究,涉及拉伸诱导结晶现象、拉伸诱导结晶的影响因素、拉伸诱导结晶与力学性能的构效关系及拉伸诱导结晶的表征方法等方面.
As a special species of polyamide,long chain polyamide(LCPA)provides combined performances of polyolefin and polyamide due to its chemical structure with long methylene chains segments between two neighbor polar amide groups.During the processing or application,strain-induced crystallization(SIC)has a significant effect on the mechanical strength and elasticity of LCPA and LCPA based its copolymers.It is of great importance to further study the microstructural evolution mechanism for the design and production of LCPA and its copolymers under the external field.With a focus on the SIC,this feature article mainly summarizes our group’s work on SIC of LCPA since 2010 and some related studies of other researchers,including the phenomenon of SIC observed in LCPA and its copolymer,the influencing factors of SIC and the corresponding rules,the correlation between SIC and the mechanical properties,and the characterization technics as well.
作者
王莉莉
朱平
董侠
王笃金
Li-li Wang;Ping Zhu;Xia Dong;Du-jin Wang(Beijing National Laboratory for Molecular Science,CAS Key Laboratory of Engineering Plastics,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190;State Key Laboratory of Bio-Fibers and Eco-Textiles,Institute of Marine Biobased Materials,Qingdao University,Qingdao 266071;University of Chinese Academy of Sciences,Beijing 100049)
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
2020年第1期1-11,I0001,共12页
Acta Polymerica Sinica
基金
国家重大研发计划重点专项(项目号2017YFB0307604)
中国科学院科技服务网络计划(STS)区域中心项目(项目号KFJ-STS-QYZX-013)资助
关键词
长碳链聚酰胺
长碳链聚醚酰胺
拉伸诱导结晶
构效关系
表征
Long chain polyamide
Poly(ether-b-amide)
Strain-induced crystallization
Structure-property relationship
Characterization
