Diffusion of butanediol in poly(butylene terephthalate) (PBT) melt and analysis of pbt polymerization reactor with surface renewal | Zendy

Yoon Kwan Han | Zendy; Park O. Ok | Zendy

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Diffusion of butanediol in poly(butylene terephthalate) (PBT) melt and analysis of pbt polymerization reactor with surface renewal

Author(s) -

Yoon Kwan Han,

Park O. Ok

Publication year - 1995

Publication title -

polymer engineering and science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.503

H-Index - 111

eISSN - 1548-2634

pISSN - 0032-3888

DOI - 10.1002/pen.760350810

Subject(s) - materials science , polymerization , diffusion , ethylene , polymer chemistry , chemical engineering , butanediol , polyethylene terephthalate , thermal diffusivity , composite material , polymer , catalysis , organic chemistry , thermodynamics , chemistry , physics , fermentation , engineering

A reactor with surface renewal, originally designed for poly(ethylene terephthalate) (PET) polymerization, was applied for poly(butylene terephthalate) (PBT) polymerization. A comprehensive model including side reactions was developed and compared with the experimental results. The diffusivity of butanediol (BD) in PBT melt was measured separately by desorption experiments ( D b − 1.08 × 10 6 exp(−32600 / RT) (m 2 /min)). Optimum operating temperature for PBT polymerization was found to be around 250°C in order to avoid degradation.

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