Premium
Hydrogels of poly(2‐hydroxyethyl methacrylate) reinforced with nanocrystalline cellulose as candidates for biomaterials
Author(s) -
PiñaAcosta Juan Antonio,
ZizumboLopez Arturo,
LiceaClaverie Angel
Publication year - 2018
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.24227
Subject(s) - self healing hydrogels , materials science , methacrylate , thermogravimetric analysis , swelling , nanocomposite , differential scanning calorimetry , composite material , polymer , cellulose , dynamic mechanical analysis , polymer chemistry , chemical engineering , copolymer , physics , engineering , thermodynamics
Nanocomposite hydrogels were prepared based on crosslinked poly(2‐hydroxyethyl methacrylate) (PHEMA) as polymer matrix and nanocrystalline cellulose fibers (NCC) as nanomaterial filler. NCC fibers were obtained by acid hydrolysis of cotton and pristine PHEMA and PHEMA nanocomposite hydrogels were synthesized by photopolymerization. Physicochemical, thermal, and mechanical properties of pristine and nanocomposite hydrogels were evaluated by differential scanning calorimetry, thermogravimetric analysis, mechanical tests by submersion compression, and measurements of swelling at equilibrium. Results showed that the compressive modulus of PHEMA hydrogels increased significantly with addition of only 1wt% of NCC fibers. Furthermore, PHEMA nanocomposite hydrogels exhibit higher water swelling degree and are thermally more stable than pristine PHEMA hydrogels. POLYM. COMPOS., 39:E278–E285, 2018. © 2016 Society of Plastics Engineers