THERMAL RELAXATION OF LANGMUIR-BLODGETT-FILMS OF POLY(VINYL ALKYLALS) STUDIED BY THE INTERLAYER ENERGY-TRANSFER METHOD

被引：13

作者：

UENO, T ^{[1
]}

ITO, S ^{[1
]}

OHMORI, S ^{[1
]}

ONOGI, Y ^{[1
]}

YAMAMOTO, M ^{[1
]}

机构：

[1] KYOTO UNIV,FAC ENGN,DEPT POLYMER CHEM,SAKYO KU,KYOTO 606,JAPAN

来源：

MACROMOLECULES | 1992年 / 25卷 / 26期

关键词：

D O I：

10.1021/ma00052a012

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Ultrathin polymer films of poly(vinyl alkylals) with a spatial order of multilayers were made by the Langmuir-Blodgett (LB) technique. The structural relaxation was examined by energy-transfer phenomena between phenanthrene (P) labeled and anthracene (A) labeled layers. The energy-transfer efficiency began to increase markedly with the first rise in temperature. Once the sample was heated to 100-degrees-C, the increase efficiency was maintained during successive cooling and heating cycles, and the value was independent of the spatial arrangement at the initial stage. The efficiency resembled that of spin-coated films containing the P and A polymers with the same compositions. The layered structure was irreversibly disordered and mixed by the thermal treatment. The structural changes could not be detected by a macroscopic measurement such as ellipsometry but could be sensitively observed by the energy-transfer method.

引用

页码：7150 / 7154

页数：5

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