Roles of Water Molecules Involved in Aromatic Polyester as Hydorophobic Polymer. (English)
In: Kobunshi Ronbunshu, Jg. 69 (2012-09-01), Heft 9, S. 511-519
academicJournal
Zugriff:
Commercial optical resins on their moldings have been required to be dried in their water contents, 0.01˜0.05 wt%, in hot airflow. However, the structure of wet resins and the location and role of water molecules in them remain unknown. Polymerization of Bisphenol A and iso- and terephthaloyl chlorides by the interfacial polycondensation method provides a polyester, PAR Free , which has phenolic OH groups at the polymer ends. In contrast, the polymerization in the presence of benzoyl chloride, BC, causes benzoylation of the end OH groups to give fully esterified polyesters, PAR EC . This method gave us a new technology for production of colorless, transparent and heat resistant optical fibers. We found that when PAR films using dichloromethane were cast on a glass dish, the glass surfaces often are widely exfoliated with the resin film. In this study, this surface-exfoliation phenomenon is explored. [ABSTRACT FROM AUTHOR]
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Titel: |
Roles of Water Molecules Involved in Aromatic Polyester as Hydorophobic Polymer. (English)
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Autor/in / Beteiligte Person: | Yamazaki, Takayoshi ; Mawatari, Yasuteru ; Namikawa, Yoshitada ; Nakano, Hiroto ; Tabata, Masayoshi |
Zeitschrift: | Kobunshi Ronbunshu, Jg. 69 (2012-09-01), Heft 9, S. 511-519 |
Veröffentlichung: | 2012 |
Medientyp: | academicJournal |
ISSN: | 0386-2186 (print) |
DOI: | 10.1295/koron.69.511 |
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