Computing thermomechanical properties of dry homopolymers used as raw materials for formulation of biomedical hydrogels

J Mol Model. 2016 Jul;22(7):159. doi: 10.1007/s00894-016-3026-9. Epub 2016 Jun 16.

Abstract

Different static properties have been calculated with COMPASS force field for polyacrylamide, poly(2-hydroxyethylacrylate) (HEA), poly(2-hydroxyethylmethacrylate) (HEMA), poly(glycidylmethacrylate) (GMA), polyethylene glycol (PEG), and poly(2,2,2-trifluoroethylmethacrylate) (TFEM). For each polymers, the calculated values were averaged on five equilibrated configurations of amorphous cell composed of one atactic chain containing 100 repeat units. The ranking obtained from the densities calculated at 300 K is TFEM > HEA ≈ xpolycrylamide > HEMA ≈ GMA > PEG. Concerning the glass transition temperature we have obtained polyacrylamide > HEMA ≈ GMA ≈ HEA > PEG, and polyacrylamide > HEMA ≈ HEA > GMA ≈ PEG > TFEM for the bulk modulus. The calculated results, when available, have been compared with experimental data coming from literature.

Keywords: Dynamics simulation; Polymer-thermomechanical; Properties-molecular.

MeSH terms

  • Acrylic Resins / chemistry
  • Algorithms
  • Biocompatible Materials / chemistry*
  • Computer Simulation
  • Hydrogels / chemistry*
  • Mechanical Phenomena*
  • Methacrylates / chemistry
  • Methylmethacrylates / chemistry
  • Models, Chemical
  • Polyethylene Glycols / chemistry
  • Polymers / chemistry*
  • Polymethacrylic Acids / chemistry
  • Solubility
  • Temperature
  • Thermodynamics*

Substances

  • Acrylic Resins
  • Biocompatible Materials
  • Hydrogels
  • Methacrylates
  • Methylmethacrylates
  • Polymers
  • Polymethacrylic Acids
  • polyglycidyl methacrylate
  • 2,2,2-trifluoroethyl methacrylate
  • Polyethylene Glycols
  • hydroxyethyl methacrylate
  • polyacrylamide