Research on the Reaction of IPDI and PPG with Organo-Tin Mixed Catalyst

Yuan Wei; Shu Lin An; Su Ran Liao

doi:10.4028/www.scientific.net/AMR.430-432.399

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 430-432Research on the Reaction of IPDI and PPG with...

Research on the Reaction of IPDI and PPG with Organo-Tin Mixed Catalyst

Abstract:

The kinetics of the reaction is essential for the synthesis of polyurethane. In this study, the reaction kinetics and polymerization conditions in two-step process of isophorone diisocyante (IPDI) and polypropylene glycol (PPG) with organo-tin mixed catalyst were investigated by chemical titration. The results showed that the reaction obeyed the second-order equation of step-growth polymerization, the rate constants of IPDI and PPG reaction at 50, 60 and 70°C were 0.0161, 0.0373 and 0.0806 kg•mol-1•min-1，respectively. The activation energy obtained from the result was 74.25 kJ•mol-1. The polyurethane with number molecular weight 38721 was synthesized and was characterized by Fourier transform infrared (FTIR).

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Periodical:

Advanced Materials Research (Volumes 430-432)

Pages:

399-403

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.430-432.399

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Online since:

January 2012

Authors:

Yuan Wei, Shu Lin An, Su Ran Liao

Keywords:

Isophorone Diisocyante, Kinetic, Organo-TiN Mixed Catalyst, Polypropylene Glycol, Titration

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