The dynamic viscoelasticity and water absorption characteristics of soft acrylic resin materials containing adipates and a maleate plasticizer

Guang Hong, Hiroki Tsuka, Takeshi Maeda, Yasumasa Akagawa, Keiichi Sasaki

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The purpose of this study was to investigate the use of different plasticizers in soft acrylic resin materials to reduce leaching of the plasticizer and thus increase the durability of tissue conditioners. Samples were prepared containing different combinations of three types of polymer/copolymer powder and four types of plasticizer liquid (DEHM, DIBA, DAA and DINA). The dynamic viscoelasticity of each sample was measured after water immersion using a dynamic mechanical analyzer. Water absorption, solubility and weight change were also measured. A significant difference was found among the materials regarding dynamic viscoelasticity, water absorption and solubility. The samples containing P-n-BMA had the most stable G' and G'' scores throughout the immersion. P-n-BMA is the most suitable powder together with DEHM as the most suitable liquid component for a tissue conditioner. These results suggest that it is possible to improve the durability of tissue conditioners by combining different polymers and plasticizers.

Original languageEnglish
Pages (from-to)139-149
Number of pages11
JournalDental materials journal
Volume31
Issue number1
DOIs
Publication statusPublished - 2012 Jan 21

Keywords

  • Adipates
  • Dynamic viscoelasticity
  • Maleate plasticizer
  • Soft acrylic resin

ASJC Scopus subject areas

  • Ceramics and Composites
  • Dentistry(all)

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