Study of beta-alpha recrystallization of the polypropylene
文献类型：期刊论文
| 作者 | Yuan Q ; Jiang W ; An LJ |
| 刊名 | colloid and polymer science
 |
| 出版日期 | 2004 |
| 卷号 | 282期号:11页码:1236-1241 |
| 关键词 | GAMMA-ISOTACTIC POLYPROPYLENE PHASE-TRANSFORMATION CRYSTAL-STRUCTURE CRYSTALLIZATION TEMPERATURE FORM KINETICS CHAINS DIFFRACTION MORPHOLOGY |
| ISSN号 | 0303-402x |
| 通讯作者 | jiang w |
| 中文摘要 | the crystalline modifications alpha and beta of polypropylene (pp) were studied by using polarized light microscopy (plm), wide-angle x-ray diffraction (waxd), and differential scanning calorimetry (dsc). typically beta crystals surrounded by alpha spherulites were observed at low temperature. with increasing temperature the beta crystals melted and a new crystal appeared. more interestingly, the melting temperature of the new crystal was about 5degrees higher than that of alpha spherulites originally present in the sample formed isothermally. it was assumed that this new crystal was the recrystalline alpha crystal. this assumption was supported by the dsc results. furthermore, the crystallization kinetics of the pp used was studied on the basis of the traditional avrami analysis. as a result, the avrami exponents of crystallization temperature from 120 to 130degreesc ranged between 4.21 and 3.60, indicating that the crystallization mechanism of pp order melt was spherulitic growth and random nucleation. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000223957200008 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/14917]  |
| 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 | Yuan Q,Jiang W,An LJ. Study of beta-alpha recrystallization of the polypropylene[J]. colloid and polymer science,2004,282(11):1236-1241. |
| APA | Yuan Q,Jiang W,&An LJ.(2004).Study of beta-alpha recrystallization of the polypropylene.colloid and polymer science,282(11),1236-1241. |
| MLA | Yuan Q,et al."Study of beta-alpha recrystallization of the polypropylene".colloid and polymer science 282.11(2004):1236-1241. |
入库方式： OAI收割
来源：长春应用化学研究所
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