Synthesis and crystallization behavior of nylon 12,14. I. Preparation and melting behavior
作者： Yongjin Li , Guosheng Zhang , Deyue Yan
DOI: 10.1002/APP.11826
关键词: Materials science 、 Dynamic mechanical analysis 、 Polymer 、 Chemical engineering 、 Polymer chemistry 、 Intrinsic viscosity 、 Thermogravimetric analysis 、 Differential scanning calorimetry 、 Crystallization 、 Polymerization 、 Nylon 12
摘要: A long-alkane-segment semicrystalline polyamide based on 1,12-diaminododecane and 1,12-dodecanedicarboxylic acid was synthesized characterized. The polymer prepared by melt polycondensation. molecular weight of the material ranged from 20,000 to 40,000 g/mol, depending polymerization conditions. resulting product characterized means elemental analysis, infrared spectrometry, 1H- 13C-NMR, intrinsic viscosity, differential scanning calorimetry (DSC), thermogravimetric dynamic mechanical wide-angle X-ray diffraction (WAXD). Some properties were measured. In addition, thermal behavior nylon 12,14 systematically investigated with DSC variable-temperature WAXD. Double endotherms observed during melting polymer, which might have originated recrystallization processes heating. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 88: 1581–1589,
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