CRYSTAL-STRUCTURE OF POLY(PARA-PHENYLENE) PREPARED BY ORGANOMETALLIC TECHNIQUE

被引:63
作者
SASAKI, S [1 ]
YAMAMOTO, T [1 ]
KANBARA, T [1 ]
MORITA, A [1 ]
YAMAMOTO, T [1 ]
机构
[1] TOKYO INST TECHNOL,RESOURCES UTILIZAT RES LAB,MIDORI KU,YOKOHAMA,KANAGAWA 227,JAPAN
关键词
POLY(P-PHENYLENE) FROM ORGANOMETALLIC POLYMERIZATION; CRYSTAL STRUCTURE OF; CRYSTAL STRUCTURE OF POLY(P-PHENYLENE) FROM ORGANOMETALLIC PREPARATION; X-RAY DIFFRACTION OF ORGANOMETALLICALLY PRODUCED POLY(P-PHENYLENE);
D O I
10.1002/polb.1992.090300309
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The two-dimensional crystal structure of poly(p-phenylene) is investigated by linked-atom Rietveld analysis of the x-ray diffraction powder profile. Two molecular chains are packed in a rectangular pgg unit cell (a = 0.779 nm; b = 0.551 nm) with a paracrystalline shift distortion along the chain axis. The molecular conformation is not rigidly planar; rotations between adjacent phenyl-ring planes in a molecule alternate with an angle of about 20-degrees. The setting angle between the mean molecular plane and the a axis is 55.5-degrees.
引用
收藏
页码:293 / 297
页数:5
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