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18.97.14.80
18.97.14.80
실시간 Torque 측정을 이용한 PDMS ( Polydimethylsiloxane ) 중합 거동에 관한 연구
Study of Polymerization Behavior of Polydimethysiloxane using real - time Torque Monitoring
왕한철 , 이민수 ( Han Cheol Wang , Min Soo Lee )
응용화학 vol. 2 iss. 1 84-87(4pages)
UCI I410-ECN-0102-2009-570-007307432
This article is 4 pages or less.

The polymerization of polydimethylsiloxane was performed and the viscosity variation of the product was monitored during polymerization. The used monomer was octamethylcyclotetrasiloxane, and H₂O and hexamethyldisiloxane was used as a termination agent for OH and tri-methyl end group. And the used catalyst was tetrabutyl phosphonium hydroxide which was inactivated effectively at high temperature after the polymerization. The viscosity of product was increased as increase of reaction time when the amount of termination agent was relatively low. But the viscosity of product was decreased as increase of reaction time when the amount of termination was relatively high. Which viscosity trend was interpreted as a competition of addition reaction and termination reaction. The monitoring of visicosity variation during polymerization was very effective to study the effect end group for polymerization.

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