| 马来酸酐接枝聚丙烯的等温结晶动力学研究 |
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| 引用本文： | 于晓强,王静媛,李峰,秦东奇,徐冰,汤心颐.马来酸酐接枝聚丙烯的等温结晶动力学研究[J].高分子学报,1998(1):26-31. |
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| 作者姓名： | 于晓强 王静媛 李峰 秦东奇 徐冰 汤心颐 |
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| 作者单位： | 吉林大学化学系,长春,130023 |
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| 摘 要： | 用ＤＳＣ法追踪了马来酸酐接枝聚丙烯的等温结晶过程，讨论了马来酸酐降低聚丙烯球晶径向生长自由能，提高结晶速率，但降低聚丙烯结晶度的物理和化学机制．同时探讨了马来酸酐的接枝对球晶生长和成核机制的影响．
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| 关 键 词： | 聚丙烯，马来酸酐，接枝反应，等温结晶，结晶度，球晶生长，成核机理，表面自由能 |
KINETICS OF ISOTHERMAL CRYSTALLIZATION FOR MALEIC ANHYDRIDE GRAFT POLYPROPYLENE |
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| YU Xiaoqiang,WANG Jingyuan,LI Feng,QIN Dongqi,XU Bing,TANG Xinyi.KINETICS OF ISOTHERMAL CRYSTALLIZATION FOR MALEIC ANHYDRIDE GRAFT POLYPROPYLENE[J].Acta Polymerica Sinica,1998(1):26-31. |
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| Authors: | YU Xiaoqiang WANG Jingyuan LI Feng QIN Dongqi XU Bing TANG Xinyi |
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| Abstract: | The samples of maleic anhydride graft polyproylene conposing different quantity of maleic anhydride are prepared.The kinetics of isothermal crystallization has been investigated by DSC.The physical and chemical mechanism by which succinic anhydride group reduces the surface free energy of radial growth of PP spherulite,increases the crystallization rate,but reduces the crystallinity was demonstrated.The influence of succinic anhydride group on mechanism of spherulite growth and nucleation was discussed. |
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| Keywords: | Polypropylene Maleic anhydride Graft polymerization Isothermal crystallization Spherulite growth Surface free energy Nucleation |
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