Synthesis and Characterization of Soft-Hard Stereoblock Polybutadiene with Fe(2-EHA)3/Al(i-Bu)3/DEP Catalyst System
文献类型：期刊论文
| 作者 | Zheng, Wenjie; Wang, Feng; Bi, Jifu; Zhang,Chunyu; Hu,Yanming; Bai,Chenxi; Zhang,Xuequan |
| 刊名 | journal of polymer science part a-polymer chemistry
 |
| 出版日期 | 2015 |
| 卷号 | 53期号:10页码:1182-1188 |
| 关键词 | CONTROLLED/LIVING RADICAL POLYMERIZATION CHAIN TRANSFER POLYMERIZATION BLOCK-COPOLYMERS SYNDIOTACTIC 1 LIVING POLYMERIZATION STEREOSPECIFIC POLYMERIZATION POLY(METHYL METHACRYLATE) ELASTOMERIC POLYPROPYLENE TRIBLOCK COPOLYMERS C-13 NMR 2-POLYBUTADIENE |
| 通讯作者 | zhang,xq |
| 英文摘要 | stereoblock polybutadiene (pbd) composed of amorphous equibinary cis-1,4/1,2 pbd (e-pbd, soft) and crystalline syndiotactic 1,2-pbd (s-1,2-pbd, hard) segments is synthesized through one-pot sequential polymerization with iron(iii)2-ethylhexanoate/triisobutylaluminum/diethyl phosphate [fe(2-eha)(3)/al(i-bu)(3)/dep] catalyst system. the first-stage polymerization of 1,3-butadiene (bd) is carried out at a low [al]/[fe] ratio to give amorphous e-pbd block, and sequentially, the in situ addition of excessive al(i-bu)(3) and bd to the living polymerization system give rise to a second crystalline s-1,2-pbd block. the length of each block is controllable by adjusting cocatalyst and monomer feed ratio. the syndiotactic pentad content is in the range of 63.8-76.6% and increases with the length of s-1,2-pbd block. the copolymer exhibits glass transition temperature (t-g) around -40 degrees c and melting point (t-m) around 168 degrees c originating from e-pbd and s-1,2-pbd blocks, respectively. the incompatibility between s-1,2-pbd and e-pbd blocks as well as the crystallization of s-1,2-pbd block induce the microphase separation in stereoblock pbd. (c) 2015 wiley periodicals, inc. j. polym. sci., part a: polym. chem. 2015, 53, 1182-1188 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-31 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/67930]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zheng, Wenjie,Wang, Feng,Bi, Jifu,et al. Synthesis and Characterization of Soft-Hard Stereoblock Polybutadiene with Fe(2-EHA)3/Al(i-Bu)3/DEP Catalyst System[J]. journal of polymer science part a-polymer chemistry,2015,53(10):1182-1188. |
| APA | Zheng, Wenjie.,Wang, Feng.,Bi, Jifu.,Zhang,Chunyu.,Hu,Yanming.,...&Zhang,Xuequan.(2015).Synthesis and Characterization of Soft-Hard Stereoblock Polybutadiene with Fe(2-EHA)3/Al(i-Bu)3/DEP Catalyst System.journal of polymer science part a-polymer chemistry,53(10),1182-1188. |
| MLA | Zheng, Wenjie,et al."Synthesis and Characterization of Soft-Hard Stereoblock Polybutadiene with Fe(2-EHA)3/Al(i-Bu)3/DEP Catalyst System".journal of polymer science part a-polymer chemistry 53.10(2015):1182-1188. |
入库方式： OAI收割
来源：长春应用化学研究所
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。