An infrared spectroscopic study of H-bond network in hyperbranched polyester polyol

被引：117

作者：

Zagar, E ^{[1
]}

Grdadolnik, J ^{[1
]}

机构：

[1] Natl Inst Chem, SI-1000 Ljubljana, Slovenia

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2003年 / 658卷 / 03期

关键词：

hyperbranched polyester; infrared spectroscopy; H-bond network; hydration; band assignment;

D O I：

10.1016/S0022-2860(03)00286-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A FTIR study of aliphatic hyperbranched polyester of the fourth generation Boltorn H40 (BH40) is presented. In order to properly assign the main vibrational bands in infrared spectrum temperature measurements, hydration and H/D exchange experiments were performed. Beside these experiments, difference spectroscopy, 2D generalized correlation infrared spectroscopy (2-DGCS) and band fitting procedure were employed to study the main interactions in polymer. On the basis of the detected interactions between various groups the structure of a H-bond network in hyperbranched polyester is proposed. Three main H-bond interactions were detected. Besides C=O...HO and HO...HO a third type of H-bond is present (C=O...HO..HO). A minor type of interactions represent the hydrogen bond formed with the carboxyl COOH group and impurities, which may be present in lower concentration. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：143 / 152

页数：10

共 26 条

[1]

BELLAMY J, 1975, INFRARED SPECTRA COM

[2] THE INFRA-RED ABSORPTION BANDS ASSOCIATED WITH THE COOH AND COOD GROUPS IN DIMERIC CARBOXYLIC ACID .2. THE REGION FROM 3700 TO 1500 CM-1 [J].