Synthesis and mechanical properties of IPN gels synthesized by addition reaction between multifunctional and bifunctional compounds combined with ring-opening polymerization of multifunctional-epoxides

Naofumi Naga, Shun Fujioka, Megumi Kobayashi, Kazumasa Moriyama, Hidemitsu Furukawa

Research output: Contribution to journalArticle

Abstract

Interpenetrating polymer network (IPN) gels have been synthesized by combination of networks formed by thiol-ene reaction of multifunctional compounds with bifunctional compounds (1st network) and ring opening polymerization of poly(ethylene glycol) diglycidylether (PEGDE) (2nd network). The 1st network was formed by thiol-ene click reaction of a multi-functional vinyl siloxane, (1,3,5,7-tetramethylcyclotetrasiloxane, TVMCTS) and an alkyl dithiol, (1,10-decane dithiol, DDT) in toluene. The mechanical properties of the IPN gels were investigated by compression tests. The IPN gels showed a higher breaking stress and breaking point than the single network gel. The 1st network has been also synthesized by the thiol-ene reaction of multi-functional thiol compounds and poly(ethylene glycol) diacrylate in some organic solvents (toluene, tetrahydrofuran). These IPN gels also showed higher breaking stress and breaking point in comparison with the corresponding single network gels. The IPN gels with PTMB showed higher Young's modulus due to the physical entanglement between the 1st and 2nd networks. The reaction system of caster oil-hexamethylene diisocyanate (HDI)/epoxized soybean oil (ESO) was also usable to synthesize IPN gels. The 1st and 2nd networks were formed by the addition reaction of caster oil and HDI, and ring opening polymerization of ESO, respectively. The composition ratio and formation order of the 1st and 2nd network affected the mechanical properties of the resulting IPN gels. 2019, The Society of Polymer Science, Japan.

Original languageEnglish
Pages (from-to)319-329
Number of pages11
JournalKobunshi Ronbunshu
Volume76
Issue number4
DOIs
Publication statusPublished - 2019 Jan 1

Fingerprint

Addition reactions
Interpenetrating polymer networks
Epoxy Compounds
Ring opening polymerization
polymerization
mechanical property
Gels
gel
polymer
Mechanical properties
thiol
Sulfhydryl Compounds
Soybean oil
Soybean Oil
oil
Toluene
toluene
ethylene
Polyethylene glycols
soybean

Keywords

  • Interpenetrating Polymer Network Gel
  • Mechanical Property
  • Network Structure

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Materials Science (miscellaneous)
  • Environmental Science(all)
  • Polymers and Plastics

Cite this

Synthesis and mechanical properties of IPN gels synthesized by addition reaction between multifunctional and bifunctional compounds combined with ring-opening polymerization of multifunctional-epoxides. / Naga, Naofumi; Fujioka, Shun; Kobayashi, Megumi; Moriyama, Kazumasa; Furukawa, Hidemitsu.

In: Kobunshi Ronbunshu, Vol. 76, No. 4, 01.01.2019, p. 319-329.

Research output: Contribution to journalArticle

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