| 刚性链芳香聚酰胺片晶结构 |
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| 引用本文： | 陈寿羲,金永泽.刚性链芳香聚酰胺片晶结构[J].高分子学报,1995,0(2):212-216. |
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| 作者姓名： | 陈寿羲 金永泽 |
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| 作者单位： | 中国科学院化学研究所 |
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| 基金项目： | 国家基础性重大关键项目 |
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| 摘 要： | 应用透射电子显微术直接观察了刚性链芳香聚酰胺结晶取向膜的结晶形态结构．结果表明了，在聚对苯二甲酰对苯二胺（ＰＰＴＡ）和聚对苯甲酰胺（ＰＢＡ）的结晶取向膜中均存在有片晶结构．片晶的厚度对ＰＰＴＡ为２０ｎｍ；而对ＰＢＡ为４０ｎｍ，其大小恰好分别与该高聚物分子链的相关长度相当．最后提出一伸直链构象的结构模型来描述这类刚性链高聚物形成片晶结构的分子链堆砌排列方式．
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| 关 键 词： | 片晶结构，刚性链高聚物，聚对苯二甲酰对苯二胺，聚对苯甲酰胺 |
| 收稿时间： | 1992-10-10 |
LAMELLAR STRUCTURE OF RIGID AROMATIC POLYAMIDE |
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| CHEN Shou-xi,JIN Yong-ze.LAMELLAR STRUCTURE OF RIGID AROMATIC POLYAMIDE[J].Acta Polymerica Sinica,1995,0(2):212-216. |
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| Authors: | CHEN Shou-xi JIN Yong-ze |
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| Institution: | Institute of Chcmitry; Acadcmia Silica. Bening 100080 |
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| Abstract: | The lamellar structure in the oriented films with and without bandedtexture of a lyotropic aromatic polyamide sheared from the anisotropic solutions hasbeen investigated by mean of'transmission electron microscopy. The lamellar structure of 20 urn in thickness for poly (1,4-phenylene terephthalamide) (PPTA) and of40 urn in thickness for poly (1,4-benzamide) (PBA) was observed. These periodicities of lamellar structure are corresponding to the persistance length of both polymers. The molecular chain is only in extended comformation for these rigid polymers. A model was suggested to describe the packing arrangement of the molecularchain in the crystalline region of the rigid polymers. |
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| Keywords: | Lamellar structure Rigid polymer Poly(1 4-phenyleneterephthalamide) Poly(1 4-benzamide) |
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