Dielectric properties of bisphenol-A novolac type epoxide oligomer as a parameter for cure monitoring.: An article from: Polymer Engineering and Science
Book Details
Author(s)Tsuneo Koike, Noritoshi Ishizaki
PublisherSociety of Plastics Engineers, Inc.
ISBN / ASINB00098K2C4
ISBN-13978B00098K2C5
MarketplaceFrance 🇫🇷
Description
This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on November 1, 1998. The length of the article is 3793 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the author: Dielectric properties above the glass transition temperature ([T.sub.g]) have been investigated for three bisphenol-A novolac type epoxide oligomers (PGEBANs) that have some branching in each molecule in comparison with the diglycidyl ether of bisphenol-A (DGEBA) oligomer without branching. The relationship between the dielectric relaxation time ([Tau]) and [T.sub.g] for the branched PGEBAN oligomers is expressed by a modified Williams-Landel-Ferry (WLF) equation taking [T.sub.g] as a variable at fixed temperatures from 70 to 100 [degrees] C. The WLF-type relationships between [Tau] and [T.sub.g] for the two types of uncured epoxide oligomers, the branched PGEBAN and the nonbranched DGEBA, were found to be useful for predicting the [T.sub.g] of a branched DGEBA-alicyclic amine system during the middle stage of curing.
Citation Details
Title: Dielectric properties of bisphenol-A novolac type epoxide oligomer as a parameter for cure monitoring.
Author: Tsuneo Koike
Publication:Polymer Engineering and Science (Refereed)
Date: November 1, 1998
Publisher: Society of Plastics Engineers, Inc.
Volume: 38 Issue: 11 Page: 1838(7)
Distributed by Thomson Gale
From the author: Dielectric properties above the glass transition temperature ([T.sub.g]) have been investigated for three bisphenol-A novolac type epoxide oligomers (PGEBANs) that have some branching in each molecule in comparison with the diglycidyl ether of bisphenol-A (DGEBA) oligomer without branching. The relationship between the dielectric relaxation time ([Tau]) and [T.sub.g] for the branched PGEBAN oligomers is expressed by a modified Williams-Landel-Ferry (WLF) equation taking [T.sub.g] as a variable at fixed temperatures from 70 to 100 [degrees] C. The WLF-type relationships between [Tau] and [T.sub.g] for the two types of uncured epoxide oligomers, the branched PGEBAN and the nonbranched DGEBA, were found to be useful for predicting the [T.sub.g] of a branched DGEBA-alicyclic amine system during the middle stage of curing.
Citation Details
Title: Dielectric properties of bisphenol-A novolac type epoxide oligomer as a parameter for cure monitoring.
Author: Tsuneo Koike
Publication:Polymer Engineering and Science (Refereed)
Date: November 1, 1998
Publisher: Society of Plastics Engineers, Inc.
Volume: 38 Issue: 11 Page: 1838(7)
Distributed by Thomson Gale
