Nonisothermal crystallization behavior of a luminescent conjugated polymer, poly(9,9-dihexylfluorene-alt-2,5-didodecyloxybenzene)
The nonisothermal crystallization kinetics of poly(9,9‐dihexylfluorene‐alt‐2,5‐didodecyloxybenzene) (PF6OC12) from the melt were investigated using differential scanning calorimetry under different cooling rates. Several analysis methods were used to describe the nonisothermal crystallization behavi...
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Published in | Polymer international Vol. 56; no. 2; pp. 245 - 251 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Chichester, UK
John Wiley & Sons, Ltd
01.02.2007
Wiley |
Subjects | |
Online Access | Get full text |
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Summary: | The nonisothermal crystallization kinetics of poly(9,9‐dihexylfluorene‐alt‐2,5‐didodecyloxybenzene) (PF6OC12) from the melt were investigated using differential scanning calorimetry under different cooling rates. Several analysis methods were used to describe the nonisothermal crystallization behavior of PF6OC12. It was found that the modified Avrami method by Jeziorny was only valid for describing the early stage of crystallization but was not able to describe the later stage of PF6OC12 crystallization. Also, the Ozawa method failed to describe the nonisothermal crystallization behavior of PF6OC12. However, the method developed by combining the Avrami and Ozawa equations could successfully describe the nonisothermal crystallization kinetics of PF6OC12. According to the Kissinger method, the activation energy was determined to be 114.9 kJ mol−1 for the nonisothermal melt crystallization of PF6OC12. Copyright © 2006 Society of Chemical Industry |
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Bibliography: | Program for New Century Excellent Talents (NCET) in University - No. NCET-04-035 ark:/67375/WNG-FNRGKBQ4-9 National Natural Science Foundation of China - No. 50403012 ArticleID:PI2147 istex:56D91ED636D57787CF928A4D570C9DAF54C17D6E Shanghai Rising-Star Program - No. 04QMX1403 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0959-8103 1097-0126 |
DOI: | 10.1002/pi.2147 |