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The Solid State Postcondensation of PET, 3
Author(s) -
Gantillon Barbara,
Spitz Roger,
McKenna Timothy F.
Publication year - 2004
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200300291
Subject(s) - micrograph , materials science , dispersant , composite material , porosity , solid state , dispersion (optics) , scanning electron microscope , optics , physics , chemistry
Summary: It was demonstrated that it is possible to produce prepolymers with a number‐average degree of polymerisation on the order of 5–40 directly in a liquid‐liquid dispersion in less than three hours. It was also shown that prepolymers made via this route and rapidly crystallised by the addition of a dispersant at ambient temperature are more porous than prepolymers made in an industrial liquid melt process.SEM micrograph of prepolymers pLL‐PTA with \overline {DP} _{\rm n} = 28, d p ∈ 63–125 μm.
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