Thermal and crystallization behaviors of polyethylene blends synthesized by binary late transition metal catalysts combinations
文献类型：期刊论文
| 作者 | Pan L ; Zhang KY ; Li YG ; Bo SQ ; Li YS |
| 刊名 | journal of applied polymer science
 |
| 出版日期 | 2007 |
| 卷号 | 104期号:6页码:4188-4198 |
| ISSN号 | 0021-8995 |
| 关键词 | MOLECULAR-WEIGHT DISTRIBUTION HDPE/LLDPE REACTOR BLENDS SINGLE-SITE CATALYSTS BRANCHED POLYETHYLENE ETHYLENE POLYMERIZATION PHASE-SEPARATION ISOTHERMAL CRYSTALLIZATION PROPYLENE POLYMERIZATION BIMODAL MICROSTRUCTURES METALLOCENE CATALYSTS |
| 通讯作者 | li ys |
| 中文摘要 | a series of reactor blends of linear and branched polyethylenes have been prepared, in the presence of modified methylaluminoxane, using a combination of 2,6-bis[1(2,6-dimethyphenylimino) pyridyl]-cobalt(ii) dichloride (1), known as an active catalyst for producing linear polyethylene, and [1,4-bis(2,6-diidopropylphenyl)] acenaphthene diimine nickel(ii) dibromide (2), which is active for the production of branched polyethylene. the polymerizations were performed at various levels of catalyst feed ratio at 10 bar. the linear correlation between catalyst activity and concentration of catalyst 2 suggested that the catalysts performed independently from each other. the weight-average molecular weights ((m) over bar (w)), crystalline structures, and phase structures of the blends were investigated, using a combination of gel permeation chromatography, differential scanning calorimetry, wide-angle x-ray diffraction, and small angle x-ray scattering techniques. it was found that the polymerization activities and mws and crystallization rate of the polymers took decreasing tendency with the increase of the catalyst 2 ratios, while melting temperatures (t-m), crystalline temperatures (t,), and crystalline degrees took decreasing tendency. long period was distinctly influenced by the amorphous component concentration. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000246128400091 |
| 公开日期 | 2010-07-13 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/14357]  |
| 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 | Pan L,Zhang KY,Li YG,et al. Thermal and crystallization behaviors of polyethylene blends synthesized by binary late transition metal catalysts combinations[J]. journal of applied polymer science,2007,104(6):4188-4198. |
| APA | Pan L,Zhang KY,Li YG,Bo SQ,&Li YS.(2007).Thermal and crystallization behaviors of polyethylene blends synthesized by binary late transition metal catalysts combinations.journal of applied polymer science,104(6),4188-4198. |
| MLA | Pan L,et al."Thermal and crystallization behaviors of polyethylene blends synthesized by binary late transition metal catalysts combinations".journal of applied polymer science 104.6(2007):4188-4198. |
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。