Synthesis and UV curing Properties of Acrylates with Carbamate Groups
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TQ737

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    Abstract:

    Abstract: The 1,6-hexanediamine and isophoronediamine reacted with ethylene carbonate to produce carbamate diols, which reacted with dimethyl malonate by transesterification to form malonate terminated carbamates. The Michael addition reaction of malonate terminated carbamates with 1,6-hexanediol diacrylate,1,3-neopentyl glycol diacrylate, and polyethylene glycol diacrylate forming multifunctional acrylates containing carbamate groups (NIPUs). The structure of the synthesized intermediates and NIPUs was characterized by 1HNMR and high resolution mass spectrometry. The photo curing kinetics of NIPUs was studied by FTIR. The UV cured film properties of synthesized multifunctional acrylates gel were preliminary evaluated. The results showed that the multifunctional acrylate solution with 3% (total mass fraction) of photoinitiator 1173 and 10 % (total mass fraction) of HDDA could be cured in 60 s forming film with smooth surface and good flexibility (0.5 ~2.0 mm). The gel rate of film was reached above 96%.The adhesion of cured film to the glass was 0~2 level. The pencil hardness of UV cured film based carbamate acrylates derived from HDDA and NPGDA is up to 6 H.

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History
  • Received:March 07,2018
  • Revised:May 15,2018
  • Adopted:May 25,2018
  • Online: December 07,2018
  • Published:
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