Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | SHINN, TH | en_US |
dc.contributor.author | LIN, CC | en_US |
dc.date.accessioned | 2014-12-08T15:04:38Z | - |
dc.date.available | 2014-12-08T15:04:38Z | - |
dc.date.issued | 1993-02-10 | en_US |
dc.identifier.issn | 0021-8995 | en_US |
dc.identifier.uri | http://dx.doi.org/10.1002/app.1993.070470618 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/3121 | - |
dc.description.abstract | A series of co [poly (ethylene terephthalate-p-oxybenzoate)] thermotropic copolyester with different compositions were prepared by the copolymerization of either poly(ethylene terephthalate) (PET) polymer or its oligomer with p-acetoxy-benzoic acid. The polymeric products were subjected to solid-state polymerization for various time intervals. Effects of composition ratio and solid-state polymerization time on X-ray diffraction behavior were investigated. It is found that the effect of transesterification induced by solid-state polymerization causes an increase in crystallinity with the copolyesters having high mol % of p-oxybenzoic acid (POB) moiety and causes a decrease in crystallinity with the copolyesters having high mol % of PET moiety. In general, the crystallinity of copolyesters is first increased and then decreased as solid-state polymerization time proceeds. However, the crystallinity of copolyester having POB/PET = 80/20 composition is increased generally at 4-h solid-state polymerization. It is also found that the crystallinity of copolyesters is decreased by quenching. The copolyester based upon either PET oligomer with 4-h solid-state polymerization or PET polymer with 8-h solid-state polymerization shows the most similar X-ray diffraction pattern with that of Eastman 10109. | en_US |
dc.language.iso | en_US | en_US |
dc.title | CO[POLY(ETHYLENE TEREPHTHALATE-P-OXYBENZOATE)] THERMOTROPIC COPOLYESTER .2. X-RAY-DIFFRACTION ANALYSIS | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1002/app.1993.070470618 | en_US |
dc.identifier.journal | JOURNAL OF APPLIED POLYMER SCIENCE | en_US |
dc.citation.volume | 47 | en_US |
dc.citation.issue | 6 | en_US |
dc.citation.spage | 1105 | en_US |
dc.citation.epage | 1113 | en_US |
dc.contributor.department | 應用化學系 | zh_TW |
dc.contributor.department | Department of Applied Chemistry | en_US |
dc.identifier.wosnumber | WOS:A1993KH24600018 | - |
dc.citation.woscount | 8 | - |
Appears in Collections: | Articles |
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