Premium
Synthesis and Properties of a New Chitosan‐Based Shape Memory Polymer and its Composites
Author(s) -
Antony Gnanadickam Jerald Maria,
Poulose Priya,
Aruna Singanahalli ThippaReddy,
Shanuja Shailaja Kesavan,
Gnanamani Arumugam,
Suneetha Yalachigere Kempaiah,
Raja Samikkannu
Publication year - 2021
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202004712
Subject(s) - materials science , composite material , biocompatibility , composite number , polyvinyl acetate , glass transition , biopolymer , chitosan , polymer , methacrylate , cellulose acetate , scanning electron microscope , polyethylene glycol , dynamic mechanical analysis , cellulose , chemical engineering , polymerization , engineering , metallurgy
In the present study, a new thermo‐responsive shape memory polymer (SMP) based on biopolymers such as chitosan (CH), cellulose acetate (CA), and polyvinyl acetate (PVAc) is fabricated, and the probable structure is elucidated based on proton nuclear magnetic resonance spectroscopy. CH based biopolymer composites are prepared by incorporating fillers like polyethylene glycol methacrylate grafted hydroxyapatite (g‐HAp) and turmeric (TUR) powders. The morphology of g‐HAp and TUR particles are investigated by scanning electron microscopy. The mechanical properties of SMP composites are evaluated at room temperature and above the glass transition temperature (T g ). The obtained SMP exhibits a T g of 75 °C and the T g of the composites did not alter after incorporation of fillers. The developed SMP shows the shape memory effect due to the presence of PVAc. The addition of TUR and g‐HAp fillers enhanced the mechanical properties and biocompatibility of SMP. The Young‘s modulus (max. 27 MPa) obtained for the SMP composite in this study is higher than the reported values of 2–4 MPa for CH composite containing bioactive glass nanoparticles. The developed CH‐SMPs may find application in wound healing and bone implants.