Synthesis and curing of new aromatic azomethine epoxies with alkoxy side groups
- Authors
- Choi, EJ; Seo, JC; Bae, HK; Lee, JK
- Issue Date
- Feb-2004
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- flexible side chain; aromatic azomethine epoxy; cure kinetics
- Citation
- EUROPEAN POLYMER JOURNAL, v.40, no.2, pp 259 - 265
- Pages
- 7
- Journal Title
- EUROPEAN POLYMER JOURNAL
- Volume
- 40
- Number
- 2
- Start Page
- 259
- End Page
- 265
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/27018
- DOI
- 10.1016/j.eurpolymj.2003.08.009
- ISSN
- 0014-3057
1873-1945
- Abstract
- Four new aromatic epoxies containing azomethine unit as a backbone linkage and alkoxy group as a flexible side chain were synthesized and characterized by means of IR and NMR spectrometry, and differential scanning calorimetry (DSC). The carbon number (n) of the alkoxy group was varied from hexyloxy (6) to nonyloxy (9). The cure kinetics for an epoxy/diamine-system was investigated by a DSC technique. From a multi-temperature scan method, developed by Ozawa and Kissinger, the activation energy (E) and the frequency factor (A) were determined and compared for the epoxies with different lengths of alkoxy group. The E and A value from Kissinger method are higher than those from Ozawa method for all side chain lengths. Each method shows that E increases slightly but A increases greatly when the length of the side chain increases. The large increase in A overriding the small increase in E may lead to the acceleration of the cure reaction as the side chain becomes longer. (C) 2003 Elsevier Ltd. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - ETC > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/27018)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.