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In‐situ Polymerization of Rare‐Earth Luminous PA6
Author(s) -
Zhang Yumei,
Ye Yunting,
Wang Huaping
Publication year - 2004
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200451201
Subject(s) - crystallinity , materials science , luminous efficacy , crystallization , coalescence (physics) , fourier transform infrared spectroscopy , composite number , polymerization , pigment , luminous intensity , chemical engineering , polymer chemistry , composite material , chemistry , polymer , optics , organic chemistry , physics , astrobiology , layer (electronics) , engineering
Luminous polycaprolactam (PA6), synthesized through in‐situ polymerization, is a composite of PA6 and uniformly dispersed luminous pigment. During the polymerization, it is found that as luminous pigment was added, the time of prepolycondensation was longer and the molecular weight increased by end‐group analysis. It is also indicated that there was chemical coalescence between luminous pigment and PA6 through the end‐group analysis and FTIR. From the results of DSC, it is shown that the luminous pigment had large effect on the crystal structure of the luminous PA6. The crystallinity of luminous PA6 varied with the content of the luminous pigment and the heat‐treated conditions. From the crystallization kinetics analysis, it is shown that the crystallization rate of the composites increased as luminous pigment added.