Three-group type mechanism in the curing behavior of polyacrylate and blocked toluene diisocyanate

W. Zheng, Y. Kobayashi, K. Hirata, T. Miura, T. Kobayashi, M. Iwaki, T. Oka, Y. Hama

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The curing behavior of two resins, five blocked toluene diisocyanate (TDI) crosslinkers and polyacrylate, was studied using Torsional Braid Analysis (TBA) to examine their dynamic mechanical properties. The curing process was clearly divided into two stages. Associated with data from in situ FTIR at the molecular level, the first stage was the reaction of deblocked NCO and hydroxyl in polyacrylate. In the second stage, the deblocked NCO attacked the hydrogen in NH group of the urethane bond to conduct deep curing. Computer modelling was used to investigate the lowest-energy configuration of the crosslinker molecule. The space hindrance effect in the molecule causes this type of three-group crosslinking curing mechanism in the blocked TDI crosslinker.

Original languageEnglish
Pages (from-to)112-120
Number of pages9
JournalJournal of Applied Polymer Science
Issue number1
Publication statusPublished - 2002 Jan 3
Externally publishedYes


  • Blocked TDI crosslinker
  • Computer modeling
  • In situ FTIR
  • Polyacrylate
  • TBA

ASJC Scopus subject areas

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


Dive into the research topics of 'Three-group type mechanism in the curing behavior of polyacrylate and blocked toluene diisocyanate'. Together they form a unique fingerprint.

Cite this