Influence of the mode of synthesis on the morphology and structure of polyparaphenylene
Influence of the mode of synthesis on the morphology and structure of polyparaphenylene
复制标题
合成方式对聚对苯撑形貌和结构的影响
DOI：
10.1007/bf01132014
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
A. Boudet
中科院分区：
文献类型：
--
作者：
P. Pradère;A. Boudet
利用透射电镜技术对原始聚对苯（PPP）的形态和结构进行了详细的研究。比较了由Kovacic， Yamamoto和Fauvarque描述的不同聚合技术制备的三种样品。形态为纤维状或镶嵌状。结晶度、晶粒大小和相对取向不同。单位细胞被标记为单斜细胞。得到了Yamamoto PPP的单晶衍射图，表明存在延伸的晶片。暗场成像证实了这一点，其中莫尔条纹显示了片层的尺寸（50到100纳米）。
The morphology and structure of pristine polyparaphenylene (PPP) have been investigated in detail using transmission electron microscopy techniques. A comparison is made between three samples prepared by the different polymerization techniques described by Kovacic, Yamamoto and Fauvarque. The morphology is either fibrillar or mosaic-like. The crystallinity, the size of crystallites and their relative orientation are different. The unit cells were indexed to be monoclinic. A single-crystal diffraction pattern is obtained for Yamamoto PPP, suggesting the presence of extended crystalline lamellae. This was confirmed by dark-field imaging where moiré patterns show the dimension of the lamellae (50 to 100 nm).