摘要
本文用X-射线衍射和电子衍射研究了聚酞菁锡氧烷[Sn(P_c)O]_n的晶体结构,测定出该晶体属体心四方点阵,晶胞参数为a=17.99,c=3.91,和z=2。通过理论衍射强度的计算给出了I 4空间群的晶体结构模型。用扫描和透射电子显微镜对晶体形貌进行了观察,发现聚合物晶粒是由许多板条状基元单晶体以一定方式堆砌而成的。由选区电子衍射确定出在板条晶中分子链排列在平行于晶体的大平面且与其长边方向成约65°角的方向上。
The crystal structure of Poly( phthalocyaninatostannoxane ) , CSn(Pc)O]n, was studied with X-ray and electron diffraction. The experimental diffraction date can be indexed basedon a body-centered tetragonal crystal lattice, with a = 17. 99 A and c = 3.91 A. A crystal struc-true modal in the space group I 4 was set up using computer simulation methol dology.Morphology of the [Sn(Pc)O]n crystals were observed with both SEM and TEM. It was found that the polymer powder particles are composed of lath-like crystals.The selected-area electron diffraction indicates that the polymer chains are parallel to the large surface of the lath and make an angle of about 65?with respect to its long edge.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1989年第6期61-67,共7页
Polymer Materials Science & Engineering
