Structural Evolution of Ethylene-Octene Copolymers upon Stretching and Unloading
文献类型：期刊论文
| 作者 | Sun YY ; Fu LL ; Wu ZH ; Men YF |
| 刊名 | macromolecules
 |
| 出版日期 | 2013 |
| 卷号 | 46期号:3页码:971-976 |
| 关键词 | HIGH-DENSITY POLYETHYLENE X-RAY-SCATTERING STIMULATED SHRINKAGE FORCES TENSILE DEFORMATION CRITICAL STRAINS SMALL-ANGLE ISOTACTIC POLY(1-BUTENE) SEMICRYSTALLINE POLYMERS ORIENTED POLYMERS MOLECULAR-WEIGHT |
| ISSN号 | 0024-9297 |
| 通讯作者 | men yf |
| 中文摘要 | structural evolution of two ethylene-octene copolymers with different octene content during tensile deformation and recovery was investigated using the in-situ synchrotron small-angle x-ray scattering technique. sample containing 4 mol % octene shows similar deformation mechanism as observed previously that the whole process of deformation can be regarded as a stretching of two interpenetrating networks of crystalline rigid network and entangled amorphous phase. a transition from a crystalline rigid network dominating behavior at small deformations to a stretching-induced crystalline block disaggregation-recrystallization process occurs at a critical strain where stress generated by the stretched amorphous network reaches a critical value leading to the destruction of crystalline blocks. in sample containing 8 mol % octene, this critical strain is much larger than observed in the other sample. such a phenomenon is attributed to the fact that only crystalline lamellar stacks and bundle-like crystals with much weakened coupling can be developed in the sample. the weakened coupling between crystalline lamellar stacks is due to the existence of interstack amorphous phase which also leads to an inhomogeneous strain distribution in the system. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000315018400045 |
| 公开日期 | 2014-04-16 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/50046]  |
| 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 | Sun YY,Fu LL,Wu ZH,et al. Structural Evolution of Ethylene-Octene Copolymers upon Stretching and Unloading[J]. macromolecules,2013,46(3):971-976. |
| APA | Sun YY,Fu LL,Wu ZH,&Men YF.(2013).Structural Evolution of Ethylene-Octene Copolymers upon Stretching and Unloading.macromolecules,46(3),971-976. |
| MLA | Sun YY,et al."Structural Evolution of Ethylene-Octene Copolymers upon Stretching and Unloading".macromolecules 46.3(2013):971-976. |
入库方式： OAI收割
来源：长春应用化学研究所
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