MOLECULAR-ORIENTATION OF LIQUID-CRYSTALLINE POLYMER-FILMS FABRICATED BY POLARIZED-LASER CHEMICAL-VAPOR-DEPOSITION

被引：6

作者：

ITADANI, T ^{[1
]}

SAITO, K ^{[1
]}

AKIYA, T ^{[1
]}

NAGATA, S ^{[1
]}

NIINO, H ^{[1
]}

YABE, A ^{[1
]}

机构：

[1] NATL INST MAT & CHEM RES,TSUKUBA,IBARAKI 305,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1995年 / 34卷 / 5A期

关键词：

MOLECULAR ORIENTATION; ORGANIC THIN FILM; LIQUID CRYSTALLINE POLYMER; PULSED LASER; POLARIZATION;

D O I：

10.1143/JJAP.34.L566

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Chemical vapor deposition of three kinds of 4-[omega(2-methylpropenoyloxy)alkyloxy]-4'-cyanobiphenyls (alkyloxy; ethyloxy, propyloxy and hexyloxy) was carried out using a polarized KrF excimer laser, The films deposited from the hexyloxy monomer, whose radical polymerization gave a side-chain-type liquid crystalline polymer, showed birefrengence and IR dichroism. The anisotropy of IR absorbance suggests that the direction of side chains of the polymer is parallel to the electric vector of the laser beam. The deposition of two other monomers which yielded amorphous polymers because of the shortness of side chains! induced no molecular orientation. It was concluded that the molecular orientation took place due to an interaction between the liquid crystalline phase of the deposited polymer film and the polarized laser beam.

引用

收藏

页码：L566 / L569

页数：4

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