| 聚己内酰胺－聚乙二醇嵌段共聚物的结构和性能Ⅲ．嵌段共聚物的结晶特性 |
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| 引用本文： | 顾利霞,陈霏,王松林.聚己内酰胺－聚乙二醇嵌段共聚物的结构和性能Ⅲ．嵌段共聚物的结晶特性[J].合成纤维工业,1994(3). |
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| 作者姓名： | 顾利霞 陈霏 王松林 |
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| 作者单位： | 中国纺织大学高分子科学工程系 |
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| 摘 要： | 应用ＤＳＣ、热台、扫描电镜以及偏光显微镜等研究了ＰＡ６－ＰＥＧ嵌段共聚物的结晶性能。结果表明，共聚物呈微相分离结构，其中ＰＡ６组分和ＰＥＧ组分分别结晶。两种晶粒在各自的生长过程中彼此影响。随着ＰＥＧ组分含量的增加，晶粒的完整性越来越差。共聚以后ＰＡ６组分的玻璃化转变温度和结晶温度下降，熔融温度范围变宽，结晶能力增强，晶粒尺寸分布变宽。
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| 关 键 词： | PA6－PEG嵌段共聚物，微相分离，结晶，熔融，晶粒完整性 |
THE STUCTURE AND PROPERTY OF PA6-PEG BLOCK COPOLYMER Ⅲ,CRYSTALLIZATION PROPERTY OF BLOCK COPOLYMER |
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| Gu Lixia,Cheng Fei,Wang Songlin.THE STUCTURE AND PROPERTY OF PA6-PEG BLOCK COPOLYMER Ⅲ,CRYSTALLIZATION PROPERTY OF BLOCK COPOLYMER[J].China Synthetic Fiber Industry,1994(3). |
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| Authors: | Gu Lixia Cheng Fei Wang Songlin |
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| Abstract: | The crystallization porperty of polycaprolactam(PA6)-polyethylene glycol(PEG)block copolymer wasinvestigated by means of electron microscope,x-ray diffraction,DSC and hot stage polarized microscope. Theresults indicated that the copolymers have a microphase separation structure,The PA6 and PEG crystallizerespectively and both of this crystal grairis effect each other during the crystalline growth.The integrity ofcrystal improve with decrease of PEG content. Compared with pure PA6,the glass transition and crystalliza-tion temperatures of PA6 component in copolymer are drop,while the distribution of crystal size widened andthe capacity of crystallization increased. |
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| Keywords: | PA6-PEG block copolymer microphase separation crystallize melt integrity of crystal |
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