Phase transition and transition kinetics of a thermotropic poly(amide-imide) derived from 70% pyromellitic dianhydride, 30% terephthaloyl chloride, and 1,3-bis[4-(4 '-aminophenoxy)cumyl]benzene
文献类型:期刊论文
作者 | Liu SL ; Chung TS ; Geng JX ; Zhou EL ; Tamai S |
刊名 | macromolecules
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出版日期 | 2001 |
卷号 | 34期号:25页码:8710-8719 |
关键词 | LIQUID-CRYSTALLINE POLYIMIDE 6-LAYER REPEAT UNIT MAIN-CHAIN TRIMELLITIC ACID POLY(ESTER IMIDE)S POLYMER SYNTHESES LAYER STRUCTURES CUMYL> BENZENE LC-POLYIMIDES BEHAVIOR |
ISSN号 | 0024-9297 |
通讯作者 | chung ts |
中文摘要 | the phase transition and transition kinetics of a liquid crystalline copoly(amide-imide) (pai37), which was synthesized from 70 mol% pyromellitic dianhydride, 30 mol% terephthaloyl chloride, and 1,3-bis[4-(4'-aminophenoxy)cumyl]benzene, was characterized by differential scanning calorimetry, polarized light microscopy, x-ray diffraction, and rheology. pai37 exhibits a glass transition temperature at 182 degreesc followed by multiple phase transitions. the crystalline phase starts to melt at similar to 220 degreesc and forms smectic c (s-c) phase. the sc phase transforms into smectic a (s-a) phase when the temperature is above 237 degreesc. the s-c to s-a transition spans a broad temperature range in which the s-a phase vanishes and forms isotropic melt. the ward fiber pattern of pai37 pulled from the anisotropic melt revealed an anomalous chain orientation, which was characterized by its layer normal perpendicular to the fiber direction. the transition kinetics for the mesophase and crystalline phase formation was also studied. |
收录类别 | SCI收录期刊论文 |
语种 | 英语 |
WOS记录号 | WOS:000172414100021 |
公开日期 | 2010-11-04 |
源URL | [http://202.98.16.49/handle/322003/20461] ![]() |
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 | Liu SL,Chung TS,Geng JX,et al. Phase transition and transition kinetics of a thermotropic poly(amide-imide) derived from 70% pyromellitic dianhydride, 30% terephthaloyl chloride, and 1,3-bis[4-(4 '-aminophenoxy)cumyl]benzene[J]. macromolecules,2001,34(25):8710-8719. |
APA | Liu SL,Chung TS,Geng JX,Zhou EL,&Tamai S.(2001).Phase transition and transition kinetics of a thermotropic poly(amide-imide) derived from 70% pyromellitic dianhydride, 30% terephthaloyl chloride, and 1,3-bis[4-(4 '-aminophenoxy)cumyl]benzene.macromolecules,34(25),8710-8719. |
MLA | Liu SL,et al."Phase transition and transition kinetics of a thermotropic poly(amide-imide) derived from 70% pyromellitic dianhydride, 30% terephthaloyl chloride, and 1,3-bis[4-(4 '-aminophenoxy)cumyl]benzene".macromolecules 34.25(2001):8710-8719. |
入库方式: OAI收割
来源:长春应用化学研究所
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