Hexakis(4-oxazolinophenoxy)cyclophosphazene has been used to promote the compatibility between polycarbonate and polyamide-6 polymers. The resulting blends were characterized by a variety of method to assess the occurred compatibilization between the two types of macromolecules.
Hexakis(4-oxazolinophenoxy)cyclophosphazene,a multifunctional cyclophosphazene derivatives containing six pending oxazoline groups, was prepared by reacting hexachlorocyclophosphazene with 2-(4-hydroxyphenyl)-2-oxazoline. The resulting trimer was successively treated with carboxylic group-containing molecules (4-benzoyl-benzoic acid) and macromolecules (polyethylene terephthalate) to produce a novel photoinitiator and a polymer having higher molecular weight and improved mechanical properties, respectively.
In this paper, the synthesis, characterization, and reactivity of a novel oxazoline-containing cyclophosphazene, hexakis(4-oxazolinophenoxy)cyclophosphazene, C-6-OXA, are reported. This product was synthesized by a two-step procedure that required first the preparation of 2-(4-hydroxyphenyl)-2-oxazoline and then the successive treatment of this compound with hexachlorocyclophosphazene in the presence of NaH (60% oil dispersion). The resulting C-6-OXA was eventually reacted with low-molecular-weight organic molecules, e.g. 4-benzoylbenzoic acid, to form highly photosensitive cyclophosphazenes. and with high-molecular-weight polymers, e.g. poly(ethylene terephthalate). PET, acting as a new type of multifunctional, phosphazene-based chain extender, to produce branched PET macromolecules showing greatly modified rheological properties.
In this communication we present results on the preparation of cyclo and polyphosphazenes containing free oxazoline groups and on their possible practical utilization as new antioxidants, photoinitiators, chain extenders and starting materials for the preparation of blends between phosphazene polymers and organic macromolecules functionalized with free carboxylic groups . Moreover the modification of poly(ethylene terephthalate) with a new cyclophosphazene derivative which bears six free oxazoline groups leads to a material which shows an enhanced melt viscosity
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChain dynamics of poly(dimethylsiloxane) in the intermediate rangeFabio Ganazzoli, Giuseppe Allegra, Julia S. Higgins, Jaan Roots, Sergio Brueckner, and Emilio LucchelliCite this: Macromolecules 1985, 18, 3, 435–442Publication Date (Print):March 1, 1985Publication History Published online1 May 2002Published inissue 1 March 1985https://doi.org/10.1021/ma00145a023RIGHTS & PERMISSIONSArticle Views40Altmetric-Citations12LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (1008 KB) Get e-Alerts Get e-Alerts
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDynamics of atactic polystyrene in solutionGiuseppe Allegra, Julia S. Higgins, Fabio Ganazzoli, E. Lucchelli, and Sergio BrucknerCite this: Macromolecules 1984, 17, 6, 1253–1263Publication Date (Print):June 1, 1984Publication History Published online1 May 2002Published inissue 1 June 1984https://pubs.acs.org/doi/10.1021/ma00136a024https://doi.org/10.1021/ma00136a024research-articleACS PublicationsRequest reuse permissionsArticle Views81Altmetric-Citations21LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts