Branched crystal morphology of linear polyethylene crystallized in a two-dimensional diffusion-controlled growth field
文献类型:期刊论文
作者 | Zhang F ; Liu J ; Huang H ; Du B ; He T |
刊名 | european physical journal e
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出版日期 | 2002 |
卷号 | 8期号:3页码:289-297 |
关键词 | POLYMER CRYSTALLIZATION SINGLE-CRYSTALS QUASI-2 DIMENSIONS THIN-FILMS MELT POLY(ETHYLENE-TEREPHTHALATE) RECRYSTALLIZATION ORGANIZATION ORIENTATION DENDRITES |
ISSN号 | 1292-8941 |
通讯作者 | zhang f |
中文摘要 | the branched crystal morphology of linear polyethylene formed at various temperatures from thin films has been studied by atomic-force microscopy (afm), transmission electron microscopy (tem), electron diffraction (ed) pattern and polymer decoration technique. two types of branched patterns, i.e. dendrite and seaweed patterns, have been visualized. the fractal dimension d(f) = 1.65 of both dendrite and some of seaweed patterns was obtained by using the box-counting method, although most of the seaweed patterns are compact. selected-area ed patterns indicate that the fold stems tilt about 34.5degrees around the b-axis and polymer decoration patterns show that the chain folding direction and regularity in two (200). regions are quite different from each other. because of chain tilting, branched crystals show three striking features: 1) the lamella-like branches show two (200) regions with different thickness; 2) the crystals usually bend towards the thin region; 3) the thick region grows faster by developing branches, thus branches usually occur outside the thick region. the branched patterns show a characteristic width w, which gives a linear relationship with the crystallization temperature on a semilogarithmic plot. |
收录类别 | SCI收录期刊论文 |
语种 | 英语 |
WOS记录号 | WOS:000177771500004 |
公开日期 | 2010-11-03 |
源URL | [http://202.98.16.49/handle/322003/18349] ![]() |
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 | Zhang F,Liu J,Huang H,et al. Branched crystal morphology of linear polyethylene crystallized in a two-dimensional diffusion-controlled growth field[J]. european physical journal e,2002,8(3):289-297. |
APA | Zhang F,Liu J,Huang H,Du B,&He T.(2002).Branched crystal morphology of linear polyethylene crystallized in a two-dimensional diffusion-controlled growth field.european physical journal e,8(3),289-297. |
MLA | Zhang F,et al."Branched crystal morphology of linear polyethylene crystallized in a two-dimensional diffusion-controlled growth field".european physical journal e 8.3(2002):289-297. |
入库方式: OAI收割
来源:长春应用化学研究所
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