Comparative Raman spectroscopy studies of photosensitive polymers

被引：4

作者：

Barbet, F

Bormann, D

Warenghem, M

Khelifa, B

Kurios, Y

Reznikov, Y

Simoni, F

机构：

[1] Univ Artois, Fac Jean Perrin, Lab Physicochim Interfaces & Applicat, F-62307 Lens, France

[2] Ukrainian Acad Sci, Inst Phys, UA-252022 Kyiv, Ukraine

[3] Univ Ancona, Dipartimento Sci Mat & Terra, I-60131 Ancona, Italy

来源：

MATERIALS CHEMISTRY AND PHYSICS | 1998年 / 55卷 / 03期

关键词：

polymers; isomers and conformers; Raman spectroscopy;

D O I：

10.1016/S0254-0584(98)00037-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present Raman studies on various substituted polyvinylcinnamates, [-CH2CH(O2CCH=CHC6H5)-](n), are well known for undergoing cycloaddition when exposed to UV radiation. Our comparative studies on these unphototransformed polymers show that the substitutions on the aryl cycle play a fundamental role in the vibrational dynamics of these molecules. We have been able to identify the characteristic modes of each type of fluoro-substitution (mono, para and ortho), and as a result, it is possible to determine whether the two isomers and two rotating conformers coexist in the samples. In order to proceed to further investigations on the phototransformation process, we have determined how the C=C and C=O double-bond stretching modes behave versus the type of substitution. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：202 / 208

页数：7

共 30 条

[1]

BARBET F, UNPUB

[2] INFRARED SPECTROSCOPY OF CARBONYL COMPOUNDS .2. EFFECT OF ALKYL SUBSTITUTION AND STEREOCHEMISTRY ON NU(C=O) AND NU(C=C) STRETCHING FREQUENCIES OF ALIPHATIC AND ALICYCLIC ALPHA-ETHYLENE KETONES WITH 6-MEMBERED AND HIGHER-MEMBERED CHAINS [J].