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Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/75516
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dc.titleACID-CATALYZED CYCLODEHYDRATION OF QUINAZOLONE PREPOLYMERS.
dc.contributor.authorChan, Hardy Sze On
dc.contributor.authorLusty, J.R.
dc.date.accessioned2014-06-23T05:31:19Z
dc.date.available2014-06-23T05:31:19Z
dc.date.issued1986-09
dc.identifier.citationChan, Hardy Sze On,Lusty, J.R. (1986-09). ACID-CATALYZED CYCLODEHYDRATION OF QUINAZOLONE PREPOLYMERS.. Journal of macromolecular science. Chemistry A23 (9) : 1057-1078. ScholarBank@NUS Repository.
dc.identifier.issn0022233X
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/75516
dc.description.abstractThe effect of p-toluenesulfonic acid and phosphoric acid on the cyclodehydration of quinazolone prepolymers have been investigated. Isothermal weight loss during the curing process was monitored closely to follow the extent of cyclization. The optimum weight loss corresponding to 2 mol water is used as an indication of the formation of a fully cyclized quinazolone structure without concurrent decaroxylation. This can be achieved by incorporating the catalyst at 2 wt% concentration, which permits a lower curing temperature than those previously reported.
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentCHEMISTRY
dc.description.sourcetitleJournal of macromolecular science. Chemistry
dc.description.volumeA23
dc.description.issue9
dc.description.page1057-1078
dc.description.codenJMCHB
dc.identifier.isiutNOT_IN_WOS
Appears in Collections:Staff Publications

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