Effects of crystal growth conditions on morphology of crystalline syndiotactic 1,2-polybutadiene
文献类型：期刊论文
| 作者 | Chen Y ; Yang DC ; Hu YM ; Zhang XQ |
| 刊名 | crystal growth & design
 |
| 出版日期 | 2004 |
| 卷号 | 4期号:1页码:117-121 |
| 关键词 | CO-CS2 CATALYST SYSTEM BUTADIENE POLYMERIZATION STEREOSPECIFICITY POLYBUTADIENE COPOLYMER BLENDS FILMS |
| ISSN号 | 1528-7483 |
| 通讯作者 | yang dc |
| 中文摘要 | the crystalline syndiotatic 1,2-polybutadiene was synthesized with a catalyst consisting of iron acetylacetonate (fe(acac)(3))-triisobutylaluminum (al(i-bu)(3))-diethyl phosphite (dep), and the effects of crystal growth conditions on morphology of thin films of the polymer were investigated by transmission electron microscopy (tem) and electron diffraction (ed) techniques. the polymer with melting point 179 degreesc was found to have 89.3% 1,2-content and 86.5% syndiotacticity by c-13 nmr measurement. the results of electron microscopic studies indicate that the solution-cast thin films of the syndiotatic 1,2-polybutadiene consist of lath-like lamellae with the c-axis perpendicular to the film plane, while a- and b-axes are in the film plane. the morphology of isothermally crystallized thin films of the polymer is temperature dependent. at lower crystallization temperatures (130 degreesc), a spherulitic structure consisting of flat-on lamellae is formed. with an increase in the crystallization temperature (e.g., at 140 degreesc), the spherulites and single faceted crystals coexist. at higher crystallization temperatures (150 degreesc), single crystals with a hexagonal prismatic shape are produced. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000187968300024 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://202.98.16.49/handle/322003/14735]  |
| 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 | Chen Y,Yang DC,Hu YM,et al. Effects of crystal growth conditions on morphology of crystalline syndiotactic 1,2-polybutadiene[J]. crystal growth & design,2004,4(1):117-121. |
| APA | Chen Y,Yang DC,Hu YM,&Zhang XQ.(2004).Effects of crystal growth conditions on morphology of crystalline syndiotactic 1,2-polybutadiene.crystal growth & design,4(1),117-121. |
| MLA | Chen Y,et al."Effects of crystal growth conditions on morphology of crystalline syndiotactic 1,2-polybutadiene".crystal growth & design 4.1(2004):117-121. |
入库方式： OAI收割
来源：长春应用化学研究所
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