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Effect of vanillin on the miscibility of poly(vinyl alcohol)/gelatin composite hydrogel: Physical and chemical properties
Author(s) -
Cheng Lin,
Zuo Yi,
Zou Qin,
Li Junfeng,
Wang Huanan,
Shen Juan,
Jiang Hong,
Wang Li,
Li Yubao
Publication year - 2010
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/app.32285
Subject(s) - miscibility , vinyl alcohol , differential scanning calorimetry , materials science , vanillin , composite number , fourier transform infrared spectroscopy , gelatin , ultimate tensile strength , chemical engineering , self healing hydrogels , polymer , chitosan , polymer chemistry , dynamic mechanical analysis , reagent , glutaraldehyde , composite material , chemistry , organic chemistry , physics , engineering , thermodynamics
A composite based on poly(vinyl alcohol) (PVA) and gelatin (Gel) was prepared in the form of a miscible interphase by freezing‐thawing method using vanillin as a new compatilizer. The chemical and physical properties of PVA/Gel/vanillin composite hydrogels with different reagent concentration, and reaction time were investigated using Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), tensile testing, and scanning electron microscopy (SEM). The results elicit that the formation of CN Schiff base between Gel and vanillin may break the intrahydrogen bonding of Gel. Proper reaction time and more interactive groups result in optimal interhydrogen bonding between modified Gel and PVA so that the miscibility between two polymers has been improved. In addition, the PVA/Gel/V composite with the vanillin concentration of 0.20 g/mL and 2 h stirring exhibits a better compatibility and a higher tensile strength, which can be tailored for potential use in cartilage tissue engineering. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010