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Article: A study on the heat of fusion of β-polypropylene

TitleA study on the heat of fusion of β-polypropylene
Authors
KeywordsCrystallization
Heat Of Fusion
Pure Β-Pp
Issue Date1999
PublisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/polymer
Citation
Polymer, 1999, v. 40 n. 5, p. 1219-1222 How to Cite?
AbstractIsotactic polypropylene (iPP) resin was doped with 1% of pimelic acid/calcium stearate (composition ratio=1/1.5). It was crystallized in a two-step isothermal process, first at 130°C and then at 95°C, and finally cooled at a rate of 0.5°C min-1 to room temperature. The specimens were basically free of α-crystals and could be considered as pure β-PP. The crystallinity of the specimens was determined on the basis of their density. The heat of fusion of the β-crystal was found to be 168.5 J g-1. In comparison, the heat of fusion of the α-crystal in the undoped resin was slightly higher at 177.0 J g-1. © 1998 Elsevier Science Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/156515
ISSN
2015 Impact Factor: 3.586
2015 SCImago Journal Rankings: 1.188
References

 

DC FieldValueLanguage
dc.contributor.authorLi, JXen_US
dc.contributor.authorCheung, WLen_US
dc.contributor.authorJia, Den_US
dc.date.accessioned2012-08-08T08:42:46Z-
dc.date.available2012-08-08T08:42:46Z-
dc.date.issued1999en_US
dc.identifier.citationPolymer, 1999, v. 40 n. 5, p. 1219-1222en_US
dc.identifier.issn0032-3861en_US
dc.identifier.urihttp://hdl.handle.net/10722/156515-
dc.description.abstractIsotactic polypropylene (iPP) resin was doped with 1% of pimelic acid/calcium stearate (composition ratio=1/1.5). It was crystallized in a two-step isothermal process, first at 130°C and then at 95°C, and finally cooled at a rate of 0.5°C min-1 to room temperature. The specimens were basically free of α-crystals and could be considered as pure β-PP. The crystallinity of the specimens was determined on the basis of their density. The heat of fusion of the β-crystal was found to be 168.5 J g-1. In comparison, the heat of fusion of the α-crystal in the undoped resin was slightly higher at 177.0 J g-1. © 1998 Elsevier Science Ltd.en_US
dc.languageengen_US
dc.publisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/polymeren_US
dc.relation.ispartofPolymeren_US
dc.rightsPolymer. Copyright © Elsevier Ltd.-
dc.subjectCrystallizationen_US
dc.subjectHeat Of Fusionen_US
dc.subjectPure Β-Ppen_US
dc.titleA study on the heat of fusion of β-polypropyleneen_US
dc.typeArticleen_US
dc.identifier.emailCheung, WL:wlcheung@hkucc.hku.hken_US
dc.identifier.authorityCheung, WL=rp00103en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/S0032-3861(98)00345-0-
dc.identifier.scopuseid_2-s2.0-0033102008en_US
dc.identifier.hkuros41032-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033102008&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume40en_US
dc.identifier.issue5en_US
dc.identifier.spage1219en_US
dc.identifier.epage1222en_US
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridLi, JX=7410061004en_US
dc.identifier.scopusauthoridCheung, WL=7202743084en_US
dc.identifier.scopusauthoridJia, D=7101755520en_US

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