Solid-State Polymerization of High Temperature Copolyamides
- Solid-State Polymerization of High Temperature Copolyamides
- 김영준; 김재훈; 오성근
- Issue Date
- 한국화학공학회 춘계 학술 발표회
- High temperature copolyamides were prepared by melt-polymerization (MP) process of tetramethyleneadipamide (nylon 4,6) salt and tetramethyleneterephthalamide (nylon 4,T) salt. But, these have very low molecular weight and it is difficult to obtain high molecular weight copolyamides using MP process. These were synthesized to high molecular copolyamide by solid-state polymerization (SSP) as a function time, temperature, particle size and moisture content in a gaseous nitrogen/steam flow of atmospheric pressure. The thermal properties and molecular weight were measured by differential scanning calorimetry (DSC), thermogravimetric analysis(TGA), titrater and ubbelohde viscometer.
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