한국섬유공학회:학술대회논문집 (Proceedings of the Korean Fiber Society Conference)
- 한국섬유공학회 2003년도 봄 학술발표회 논문집
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- Pages.335-336
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- 2003
유기티타늄을 촉매로 한 폴리트리메틸렌테레프탈레이트 합성에 관한 연구
Synthesis of Poly(trimethylene terephthalate) Using an Organic Titanium Compound as a Catalyst
- Pio Sifuentes (Dept. of Polymer ＆ Fiber Materials Engineering, College of Environment and Applied Chemistry Kyung Hee University) ;
- Kim, Kap-Jin (Dept. of Polymer ＆ Fiber Materials Engineering, College of Environment and Applied Chemistry Kyung Hee University)
- 발행 : 2003.04.01
초록
The synthesis of poly(trimethylene terephthalate) (PTT), whose application is being expanded very rapidly to new apparel and carpet materials, was investigated by melt condensation polymerization using 1,3-propanediol (PDO) and terephthalic acid (TPA). No catalyst was used in the 1st step reaction (esterification), but tetrabutyl titanate(TBT) was used as a polyesterification catalyst ranging from 25 to 75 ppm based on the weight of TPA used in the 2nd step reaction (polyesterification). The molar ratio of PDO to TPA was set as 2.2:1. The effect of reaction conditions on the color and intrinsic viscosity of the final product was investigated. (omitted)
키워드