Preparation of a blocked isocyanate compound and its grafting onto styrene-b-(ethylene-co-1-butene)-b-styrene triblock copolymer
文献类型：期刊论文
| 作者 | Yin, Ligang1,2; Liu, Yanlong1,2; Ke, Zhuo1,2; Yin, Jinghua1 |
| 刊名 | EUROPEAN POLYMER JOURNAL
 |
| 出版日期 | 2009 |
| 卷号 | 45期号:1页码:191-198 |
| 关键词 | Functionalization Of Polymers Reactive Processing Elastomers Blocked Isocyanate |
| ISSN号 | 0014-3057 |
| DOI | 10.1016/j.eurpolymj.2008.10.016 |
| 英文摘要 | The epsilon-caprolactam was used to block the isocyanate group to enhance the storage stability of allyl (3-isocyanate-4-tolyl) carbamate. The spectra of FTIR and NMR showed that blocked allyl (3-isocyanate-4-tolyl) carbamate (BTAI) possesses two chemical functions, an 1-olefin double bond and a blocked isocyanate group. The FTIR spectrum showed BTAI could regenerate isocyanate group at elevated temperature. DSC and TG/DTA indicated the minimal dissociation temperature was about 135 degrees C and the maximal dissociation rate appeared at 226 degrees C. Then the styrene-b-(ethylene-co-1-butene)-b-styrene triblock copolymer (SEBS) was functionalized by BTAI via melt free radical grafting. The effect of temperature, monomer and initiator concentrations on the grafting degree and grafting efficiency was evaluated. The highest grafting degree was obtained at 200 degrees C. The grafting degree and grafting efficiency increased with the enhanced concentration of BTAI or initiator. The weight-average molecular weight (M(w)) increased greatly at higher initiator concentration and lower ratio of the monomer/initiator. And the molecule weight distribution (MWD) of the modified SEBS became wider than that of pure SEBS. It is obvious that shearing thinning behavior of grafted SEBS is more profound than pure SEBS. (C) 2008 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000263211400022 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/67811]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yin, Jinghua |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, Ligang,Liu, Yanlong,Ke, Zhuo,et al. Preparation of a blocked isocyanate compound and its grafting onto styrene-b-(ethylene-co-1-butene)-b-styrene triblock copolymer[J]. EUROPEAN POLYMER JOURNAL,2009,45(1):191-198. |
| APA | Yin, Ligang,Liu, Yanlong,Ke, Zhuo,&Yin, Jinghua.(2009).Preparation of a blocked isocyanate compound and its grafting onto styrene-b-(ethylene-co-1-butene)-b-styrene triblock copolymer.EUROPEAN POLYMER JOURNAL,45(1),191-198. |
| MLA | Yin, Ligang,et al."Preparation of a blocked isocyanate compound and its grafting onto styrene-b-(ethylene-co-1-butene)-b-styrene triblock copolymer".EUROPEAN POLYMER JOURNAL 45.1(2009):191-198. |
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。