Synthesis, characterization, and mechanical property of poly(urethane-glycidyl methacrylate-methyl methacrylate) hybrid polymers

Jung Min Lee, Joon Seop Kim, In Woo Cheong, Jung Hyun Kim

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Hybrid particles of polyurethane (PU) containing a number of small poly(methyl methacrylate) (PMMA) nanoparticles inside were prepared using glycidyl methacrylate (GMA) monomer as a linker between PU and PMMA; the resulting polymers were poly (urethane-glycidyl methacrylate-methyl methacrylate) (PUGM). It was found that the average particle size (D p) of the PU particles decreased by the inclusion of PMMA particles possibly owing to the low-solution viscosity of PU. However, Dp of the PUGM hybrid particles increased with increasing the number of covalent bonds between PMMA and PU, which might be due to decreasing the amount of ionic groups per PU chain. Subsequently, the tensile properties of the films made of the PUGM hybrid particles were investigated. It was observed that the modulus of the PU films increased upon the addition of PMMA particle because of a filler effect. In addition, it was seen that the modulus of PUGM hybrid films increased further with increasing the number of covalent bonds. This was attributed to "restricted mobility" of PU chains anchored to the PMMA particles. It was also observed that the tensile strength changed only slightly for PUGM particles, suggesting that the PU matrix was probably responsible for the necking behavior of the films. The elongation of the samples was found to depend on both the presence of covalent bonds between the PMMA particles and PU matrix and the reduced mobility of the PU chains anchored to PMMA particles.

Original languageEnglish
Pages (from-to)3111-3121
Number of pages11
JournalJournal of Applied Polymer Science
Volume121
Issue number6
DOIs
Publication statusPublished - 2011 Sep 15

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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