Thermal degradation studies of cyclic olefin copolymers
文献类型：期刊论文
| 作者 | Liu, CY; Yu, JA; Sun, XH; Zhang, J; He, JS |
| 刊名 | POLYMER DEGRADATION AND STABILITY
 |
| 出版日期 | 2003-08-01 |
| 卷号 | 81期号:2页码:197-205 |
| 关键词 | Cyclic Olefin Copolymers (Cocs) Thermogravimetric Analysis Thermal Stability Kinetics Of Degradation |
| ISSN号 | 0141-3910 |
| DOI | 10.1016/S0141-3910(03)00089-2 |
| 英文摘要 | The influences of the chemical composition and microstructure on the degradation behaviors of 3-series cyclic olefin copolymers (COCs) were investigated by using non-isothermal thermogravimetric analysis (TGA). Kinetic parameters of degradation were evaluated by using the Flynn-Wall-Ozawa iso-conversional method and the pseudo first-order method. Compared with conventional polyolefins, e.g. HDPE, COCs have lower peak temperatures of degradation, narrower degradation temperature ranges and higher amount of residual weights at the end of the degradation, which should be attributed to the chemical structure and microstructure features of COCs including the branching effect and the steric effect. The values of the reaction order of COCs determined by the Kissinger method are close to I in the non-isothermal degradation process. Although the values of E-a in region 11 calculated by using the pseudo first-order method are much higher than those calculated by using the Flynn-Wall-Ozawa method, there is a similar change trend of E-a between these two methods. However, there is a good correlation between the E-a in region 11 and the peak temperature of degradation for COCs. The theoretical weight loss versus temperature curves, generated by using the estimated kinetic parameters, well fit the experimental data, which indicates that the analysis method used in this work is valid. (C) 2003 Elsevier Science Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000183925800002 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/80249]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | He, JS |
| 作者单位 | Chinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Engn Plast, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, CY,Yu, JA,Sun, XH,et al. Thermal degradation studies of cyclic olefin copolymers[J]. POLYMER DEGRADATION AND STABILITY,2003,81(2):197-205. |
| APA | Liu, CY,Yu, JA,Sun, XH,Zhang, J,&He, JS.(2003).Thermal degradation studies of cyclic olefin copolymers.POLYMER DEGRADATION AND STABILITY,81(2),197-205. |
| MLA | Liu, CY,et al."Thermal degradation studies of cyclic olefin copolymers".POLYMER DEGRADATION AND STABILITY 81.2(2003):197-205. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。