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Article: RuO4 staining and lamellar structure of α- and β-PP

TitleRuO4 staining and lamellar structure of α- and β-PP
Authors
Issue Date1999
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/0021-8995/
Citation
Journal Of Applied Polymer Science, 1999, v. 72 n. 12, p. 1529-1538 How to Cite?
AbstractMonoclinic (α) and hexagonal (β) polypropylene (α- and β-PP) were stained in the vapor of a ruthenium tetroxide solution prepared in situ. The effect of staining on the fusion behavior was investigated using a DSC. A staining duration between 10 and 24 h was found suitable for obtaining a good electron contrast between the crystalline and amorphous regions for TEM examination without causing severe damage to the crystals. The spherulites of the water-quenched α-PP were found to be composed of very fine cross-hatched lamellae whose long period was about 10 nm. In comparison, the β-PP spherulites crystallized isothermally at 130°C had a category 2 morphology and the lamellae have a long period of 20 nm. The morphology of the spherulite boundary varied depending on the contact angle between the lamellae of the neighboring spherulites.
Persistent Identifierhttp://hdl.handle.net/10722/156518
ISSN
2015 Impact Factor: 1.866
2015 SCImago Journal Rankings: 0.578
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, JXen_US
dc.contributor.authorCheung, WLen_US
dc.date.accessioned2012-08-08T08:42:47Z-
dc.date.available2012-08-08T08:42:47Z-
dc.date.issued1999en_US
dc.identifier.citationJournal Of Applied Polymer Science, 1999, v. 72 n. 12, p. 1529-1538en_US
dc.identifier.issn0021-8995en_US
dc.identifier.urihttp://hdl.handle.net/10722/156518-
dc.description.abstractMonoclinic (α) and hexagonal (β) polypropylene (α- and β-PP) were stained in the vapor of a ruthenium tetroxide solution prepared in situ. The effect of staining on the fusion behavior was investigated using a DSC. A staining duration between 10 and 24 h was found suitable for obtaining a good electron contrast between the crystalline and amorphous regions for TEM examination without causing severe damage to the crystals. The spherulites of the water-quenched α-PP were found to be composed of very fine cross-hatched lamellae whose long period was about 10 nm. In comparison, the β-PP spherulites crystallized isothermally at 130°C had a category 2 morphology and the lamellae have a long period of 20 nm. The morphology of the spherulite boundary varied depending on the contact angle between the lamellae of the neighboring spherulites.en_US
dc.languageengen_US
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/0021-8995/en_US
dc.relation.ispartofJournal of Applied Polymer Scienceen_US
dc.rightsJournal of Applied Polymer Science. Copyright © John Wiley & Sons, Inc.-
dc.titleRuO4 staining and lamellar structure of α- and β-PPen_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.doi10.1002/(SICI)1097-4628(19990620)72:12<1529::AID-APP4>3.0.CO;2-Uen_US
dc.identifier.scopuseid_2-s2.0-0033149556en_US
dc.identifier.hkuros41036-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033149556&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume72en_US
dc.identifier.issue12en_US
dc.identifier.spage1529en_US
dc.identifier.epage1538en_US
dc.identifier.isiWOS:000079756800004-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridLi, JX=7410061004en_US
dc.identifier.scopusauthoridCheung, WL=7202743084en_US

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