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Article: Synthesis and characterization of novel highly branched block copoly(urethane-imide)s based on pentaerythritol, different diisocyanate and aromatic dianhydride

TitleSynthesis and characterization of novel highly branched block copoly(urethane-imide)s based on pentaerythritol, different diisocyanate and aromatic dianhydride
Authors
KeywordsCondensation polymerization
Copoly(urethane-imide)s (CoPUIs)
Dianhydrides
Polyimides
Synthesis
Issue Date2010
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, 2010, v. 118 n. 1, p. 99-104 How to Cite?
AbstractIn this work, we for the first time prepared a series of novel highly branched block copoly (urethane-imide)s (CoPUIs) successfully by the condensation polymerization of star-like prepolymers and dianhydrides, (including pyromellitic dianhydride (PMDA), 3,3',4,4'- benzophenonetetracarboxylic dianhydride, and 4,4'-oxydiphthalic anhydride) and the star-like prepolymers were synthesized from pentaerythritol (PAT) and toluene-2,4-diisocyanate (TDI) or isophorone diisocyanate. Our results revealed that it took about 40 min to complete the prepolymerization of PAT and TDI at 40°C. In addition, the imidization of the prepolymer and PMDA was successfully carried out at 120°C for 2 h. The X-ray diffractometer patterns exhibited that the resulting CoPUIs presented heterogenous structure with the d-spacing around 0.40 nm. Differential scanning calorimeter curves showed that the T g of these CoPUIs ranged from 214 to 229°C in N 2 atmosphere. Thermogravimetric analyzer curves indicated that these synthesized CoPUIs had obviously two steps of weight loss in N 2 atmosphere due to the used monomers which decomposed at 230-235°C and 602-644°C, respectively. The solubility testing results showed that the highly branched block CoPUIs had desirable solubility in several strong polar aprotic solvents and exhibited a strong resistance to dilute acid corrosion. © 2010 Wiley Periodicals, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/139543
ISSN
2015 Impact Factor: 1.866
2015 SCImago Journal Rankings: 0.578
ISI Accession Number ID
Funding AgencyGrant Number
Natural Science Foundation of Hubei Province
Funding Information:

This work was financially supported by the Natural Science Foundation of Hubei Province. Authors also acknowledge the Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials for providing necessary facilities.

References

 

DC FieldValueLanguage
dc.contributor.authorChen, Wen_HK
dc.contributor.authorChen, Cen_HK
dc.contributor.authorYan, Wen_HK
dc.contributor.authorYi, Cen_HK
dc.contributor.authorWu, Sen_HK
dc.contributor.authorYeung, KWKen_HK
dc.contributor.authorXu, Zen_HK
dc.date.accessioned2011-09-23T05:51:29Z-
dc.date.available2011-09-23T05:51:29Z-
dc.date.issued2010en_HK
dc.identifier.citationJournal Of Applied Polymer Science, 2010, v. 118 n. 1, p. 99-104en_HK
dc.identifier.issn0021-8995en_HK
dc.identifier.urihttp://hdl.handle.net/10722/139543-
dc.description.abstractIn this work, we for the first time prepared a series of novel highly branched block copoly (urethane-imide)s (CoPUIs) successfully by the condensation polymerization of star-like prepolymers and dianhydrides, (including pyromellitic dianhydride (PMDA), 3,3',4,4'- benzophenonetetracarboxylic dianhydride, and 4,4'-oxydiphthalic anhydride) and the star-like prepolymers were synthesized from pentaerythritol (PAT) and toluene-2,4-diisocyanate (TDI) or isophorone diisocyanate. Our results revealed that it took about 40 min to complete the prepolymerization of PAT and TDI at 40°C. In addition, the imidization of the prepolymer and PMDA was successfully carried out at 120°C for 2 h. The X-ray diffractometer patterns exhibited that the resulting CoPUIs presented heterogenous structure with the d-spacing around 0.40 nm. Differential scanning calorimeter curves showed that the T g of these CoPUIs ranged from 214 to 229°C in N 2 atmosphere. Thermogravimetric analyzer curves indicated that these synthesized CoPUIs had obviously two steps of weight loss in N 2 atmosphere due to the used monomers which decomposed at 230-235°C and 602-644°C, respectively. The solubility testing results showed that the highly branched block CoPUIs had desirable solubility in several strong polar aprotic solvents and exhibited a strong resistance to dilute acid corrosion. © 2010 Wiley Periodicals, Inc.en_HK
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_HK
dc.relation.ispartofJournal of Applied Polymer Scienceen_HK
dc.rightsJournal of Applied Polymer Science. Copyright © John Wiley & Sons, Inc.-
dc.subjectCondensation polymerizationen_HK
dc.subjectCopoly(urethane-imide)s (CoPUIs)en_HK
dc.subjectDianhydridesen_HK
dc.subjectPolyimidesen_HK
dc.subjectSynthesisen_HK
dc.titleSynthesis and characterization of novel highly branched block copoly(urethane-imide)s based on pentaerythritol, different diisocyanate and aromatic dianhydrideen_HK
dc.typeArticleen_HK
dc.identifier.emailYeung, KWK:wkkyeung@hkucc.hku.hken_HK
dc.identifier.authorityYeung, KWK=rp00309en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/app.32398en_HK
dc.identifier.scopuseid_2-s2.0-77955943633en_HK
dc.identifier.hkuros192175en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77955943633&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume118en_HK
dc.identifier.issue1en_HK
dc.identifier.spage99en_HK
dc.identifier.epage104en_HK
dc.identifier.isiWOS:000280536400013-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChen, W=25925712200en_HK
dc.identifier.scopusauthoridChen, C=25123496000en_HK
dc.identifier.scopusauthoridYan, W=7402221278en_HK
dc.identifier.scopusauthoridYi, C=7101997365en_HK
dc.identifier.scopusauthoridWu, S=15125218800en_HK
dc.identifier.scopusauthoridYeung, KWK=13309584700en_HK
dc.identifier.scopusauthoridXu, Z=7405427789en_HK

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