Isothermal and nonisothermal crystallization of poly(aryl ether ketone ketone) with all-para phenylene linkage
文献类型:期刊论文
作者 | Wang JK ; Yang XN ; Li G ; Zhou EL |
刊名 | journal of applied polymer science
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出版日期 | 2001 |
卷号 | 82期号:14页码:3431-3438 |
关键词 | PHASE IDENTIFICATIONS CRYSTAL MORPHOLOGY COPOLYMERS PEEK |
ISSN号 | 0021-8995 |
通讯作者 | li g |
中文摘要 | isothermal and nonisothermal crystallization behavior for pekk(t) was studied using differential scanning calorimetry (dsc), transmission electron microscopy (tem), and electron diffraction (ed). in the isothermal crystallization process, the avrami parameters obtained were n = 2.33-2.69, which shows crystal growth of two-dimensional extensions consistent with our observations by tem. the lamellar thickness increases with the crystallization temperature of pekk(t) crystallized isothermally from the melt. however, for the nonisothermal crystallization of pekk(t), the results from the modified avrami analysis show two different crystallization processes. avrami exponents n(1) = 3.61-5.30, obtained from the primary crystallization process, are much bigger than are the secondary n(2) = 2.26-3.04 and confirmed by the observation of the spherulite morphology. pekk(t) crystallized isothermally from the melt possesses the same crystal structure (form i) as that from nonisothermal melt crystallization. the results from tem observation show that the spherulite radius decreases with an increasing cooling rate. (c) 2001 john wiley & sons, inc. |
收录类别 | SCI收录期刊论文 |
语种 | 英语 |
WOS记录号 | WOS:000171825800007 |
公开日期 | 2010-11-04 |
源URL | [http://202.98.16.49/handle/322003/20519] ![]() |
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 | Wang JK,Yang XN,Li G,et al. Isothermal and nonisothermal crystallization of poly(aryl ether ketone ketone) with all-para phenylene linkage[J]. journal of applied polymer science,2001,82(14):3431-3438. |
APA | Wang JK,Yang XN,Li G,&Zhou EL.(2001).Isothermal and nonisothermal crystallization of poly(aryl ether ketone ketone) with all-para phenylene linkage.journal of applied polymer science,82(14),3431-3438. |
MLA | Wang JK,et al."Isothermal and nonisothermal crystallization of poly(aryl ether ketone ketone) with all-para phenylene linkage".journal of applied polymer science 82.14(2001):3431-3438. |
入库方式: OAI收割
来源:长春应用化学研究所
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