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On the Interrelationship of Transreactions with Thermal Properties and Dynamic Mechanical Analysis of PTT/PEN Blends

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dc.title On the Interrelationship of Transreactions with Thermal Properties and Dynamic Mechanical Analysis of PTT/PEN Blends en
dc.contributor.author Jafari, Seyed-Hassan
dc.contributor.author Khonakdar, Hossein Ali
dc.contributor.author Asadinezhad, Ahmad
dc.contributor.author Haussler, Liane
dc.contributor.author Boehme, Frank
dc.contributor.author Komber, Harmut
dc.relation.ispartof Macromolecular chemistry and Physics
dc.identifier.issn 1022-1352 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2009
utb.relation.volume 210
utb.relation.issue 16
dc.citation.spage 1291
dc.citation.epage 1302
dc.type article
dc.language.iso en
dc.publisher Wiley-VCH Verlag GmbH & Co. en
dc.identifier.doi 10.1002/macp.200900095
dc.relation.uri http://onlinelibrary.wiley.com/doi/10.1002/macp.200900095/abstract
dc.subject poly(trimethylene terephthalate) en
dc.subject melting behavior en
dc.subject poly(ethylene 2,6-naphthalate) en
dc.subject crystallization kinetics en
dc.subject trans-esterification en
dc.subject naphthalate) blends en
dc.subject aromatic polyesters en
dc.subject pet/pen blends en
dc.subject miscibility en
dc.subject randomness en
dc.description.abstract An attempt was made to explore the effects of interchange reactions on the crystallization, melting, and dynamic mechanical behavior of binary blends based on poly(trimethylene terephthalate) (PTT)/poly(ethylene 2,6-naphthalate) (PEN). H-1 NMR spectroscopy is used to verify the occurrence of interchange reactions at the interface, which are increased upon an increase in the melt processing time and temperature. The crystallinity of PTT was reduced while that of PEN was increased on blending. In addition, the crystallization temperatures of both phases showed depression. A single composition-dependent glass transition temperature (T-g) was detected in the second and subsequent heating thermograms of the blends, which is indicative of miscibility. The cold crystallization of the PTT phase was observed to increase while that of PEN was suppressed on blending. Each phase crystallized individually and a melting point depression was evident, which suggests a certain level of miscibility. Dynamic mechanical thermal analysis corroborated differential scanning calorimetry results. A constructive synergism was observed in the glassy state storage moduli of the blends, which is suggestive of a reduced specific volume of the system because of enhanced interactions and crystallinity. en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1001700
utb.identifier.rivid RIV/70883521:28610/09:63508004!RIV10-MSM-28610___
utb.identifier.obdid 43861797
utb.identifier.scopus 2-s2.0-69049098387
utb.identifier.wok 000269473400004
utb.source j-riv
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Asadinezhad, Ahmad
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