文章摘要
两亲聚氨酯弹性体(APU)的研究* Ⅰ.嵌段型APU制备及力学性能
Study on Amphipathic Polyurethane Elastomer Ⅰ.Preparation of Block APU and Its Mechanical Properties
  
DOI：
中文关键词: 聚氨酯弹性体  两亲聚合物  嵌段共聚物  力学性能
英文关键词: polyurethane elastomer  amphipathic polymer  block copolymer  mechanical properties
基金项目:国家自然科学基金资助项目
作者单位
庞永新 华南理工大学 
吴燕 华南理工大学 
潘慧 华南理工大学 
贾德民 华南理工大学 
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中文摘要:
      以聚己二酸乙二酯为疏水组分，聚乙二醇为亲水组分，通过溶液聚合制备了具有嵌段结构的两亲聚氨酯弹性体(APU)。研究了亲疏水组分比例、软硬段比例、合成条件等因素对嵌段型APU力学性能的影响。结果表明，亲水组分的质量分数和相对分子质量增大，都将导致APU力学性能下降；当预聚物用量比[NCO]/[OH]为3.3，固化时总官能团比例[NCO]/([OH]+[NH2])为1.5时，嵌段型APU的综合力学性能最好。
英文摘要:
      An amphipathic block polyurethane elastomer(APU) was prepared with the solution polymerization using polyethyl adipate as hydrophobic component and polyglycol as hydrophibic component.The influence of the hydrophibic and hydrophobic components ratio，the soft and hard segments ratio and the polymerization conditions on the mechanical properties of block APU was investigated.The results showed that the increase of the hydrophibic component weight fraction and molecular weight would result in the lower mechanical properties of APU；the optimum overall properties of block APU were obtained if the prepolymers ratio [NCO]/[OH] was 3.3 and their cured total functional groups ratio [NCO]/([OH]+[NH2]) was 1.5.
Author NameAffiliation
Pang Yongxin South China University of Technology 
Wu Yan South China University of Technology 
Pan Hui South China University of Technology 
Jia Demin South China University of Technology 
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