期刊
POLYMER
卷 54, 期 7, 页码 1880-1886出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2013.01.039
关键词
Benzoxazine; Rheology; Ring-opening
The main aim of this work is to study the influence of different polymerization temperatures on the polymerization processes of phenol/diaminodiphenylmethane (P-ddm)-based benzoxazines. Small amplitude oscillatory shear (SAOS), differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FT-IR) are used, and the results reveal the evolution of the rheological behavior of benzoxazine resins during polymerization. Tan delta clearly shows two peaks at lower temperatures and one of them at elevated temperatures. The first low-temperature peak is the ring-opening and the temporary structure of intermolecular hydrogen-bonding, while the second peak, which is much less outstanding in magnitude at higher temperatures, is the actual buildup of a molecular network. (c) 2013 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据