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2013•Chinese Journal of Explosives and PropellantsRequires access

FT-IR Study on the Curing Reaction of Isophorone Diisocyanate with the Glycidyl Azide Polymer and Its Prepolymer with Nitrocellose

Zhao Lu-kui

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Abstract

The glycidyl azide polymer(GAP) /isophorone diisocyanate(IPDI) system and GAP-IPDI/prepolymer/nitrocellose(NC) system were prepared.Their curing reaction kinetics was studied by FT-IR.The experimental results show that the reaction rates of the two systems increase with an increase in temperature.When the content of the curing catalyst T12 is 0.025%,the apparent activation energy of the curing reaction for the two systems are 64.88 kJ/mol and 111.19 kJ/mol,respectively,and the reaction appeares as second-order kinetic reaction.

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What this paper is about

The glycidyl azide polymer(GAP) /isophorone diisocyanate(IPDI) system and GAP-IPDI/prepolymer/nitrocellose(NC) system were prepared.Their curing reaction kinetics was studied by FT-IR.The experimental results show that the reaction rates of the two systems increase with an increase in temperature.When the content of the curing catalyst T12 is 0.025%,the apparent activation energy of the curing reaction for the two systems are 64.88 kJ/mol and 111.19 kJ/mol,respectively,and the reaction appeares as second-order kinetic reaction.

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Available abstract

The glycidyl azide polymer(GAP) /isophorone diisocyanate(IPDI) system and GAP-IPDI/prepolymer/nitrocellose(NC) system were prepared.Their curing reaction kinetics was studied by FT-IR.The experimental results show that the reaction rates of the two systems increase with an increase in temperature.When the content of the curing catalyst T12 is 0.025%,the apparent activation energy of the curing reaction for the two systems are 64.88 kJ/mol and 111.19 kJ/mol,respectively,and the reaction appeares as second-order kinetic reaction.

Key concepts: Isophorone diisocyanate, Isophorone, Prepolymer, Curing (chemistry), Azide, Polymer chemistry, Activation energy, Autocatalysis

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