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Chemical structure and compatibility of polyamide–chitin and chitosan blends
Author(s) -
González Virgilio,
Guerrero Carlos,
Ortiz Ubaldo
Publication year - 2000
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/1097-4628(20001024)78:4<850::aid-app190>3.0.co;2-n
Subject(s) - compatibilization , polyamide , differential scanning calorimetry , chitosan , materials science , polymer chemistry , scanning electron microscope , polymer blend , chemical engineering , polymer science , polymer , chitin , composite material , physics , copolymer , thermodynamics , engineering
This work presents a comparative study of the compatibilization of four binary blends with slight differences in their chemical structures. The natural polymers chitin (QA) and chitosan (QN) are blended with polyamide 6 (PA6) and polyamide 66 (PA66). The results, obtained using differential scanning calorimetry, infrared spectroscopy, and light and scanning electron microscopy, gave the following compatibilization sequence: PA6/QN ≈ PA66/QN > PA6/QA > PA66/QA. This behavior could be related to the ability of QN to form hydrogen bonds and also to the capability of the packing of PA66. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 78: 850–857, 2000