DIFFUSION OF BUTANEDIOL IN POLY(BUTYLENE TEREPHTHALATE) (PBT) MELT AND ANALYSIS OF PBT POLYMERIZATION REACTOR WITH SURFACE RENEWAL

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A reactor with surface renewal, originally designed for poly(ethylene terephthalate) (PET) polymerization, was applied for poly(butylene terephthalate) (PET) polymerization. A comprehensive model including side reactions was developed and compared with the experimental results. The diffusivity of butanediol (ED) in PET melt was measured separately by desorption experiments (D-b = 1.08 X 10(6) exp(-32600/RT) (m(2)/min)). Optimum operating temperature for PET polymerization was found to be around 250 degrees C in order to avoid degradation.
Publisher
SOC PLASTICS ENG INC
Issue Date
1995-04
Language
English
Article Type
Article
Keywords

ETHYLENE-GLYCOL; POLY(ETHYLENE-TEREPHTHALATE); POLYCONDENSATION; KINETICS

Citation

POLYMER ENGINEERING AND SCIENCE , v.35, no.8, pp.703 - 708

ISSN
0032-3888
URI
http://hdl.handle.net/10203/5236
Appears in Collection
CBE-Journal Papers(저널논문)
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