Thermal Resistant and Transparent Plastic Optical Fibres (POF) Fabricated by Using End-Capped Polyarylate Resins

Thermal resistant and transparent aromatic polyesters (PARs) were prepared in order to manufacture new plastic optical fibres (POF) of step-index types. The PARs were successfully obtained by using bisphenol A, iso- and tere-phthaloyl chlorides via an interfacial polycondensation (IPC) in the presen...

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Bibliographic Details
Published inKOBUNSHI RONBUNSHU Vol. 69; no. 6; pp. 274 - 282
Main Authors YAMAZAKI, Takayoshi, NISHINO, Todomu, OTSUKA, Kazuhiko, TAKENAKA, Yasushi, NAKASHIMA, Hironori, MAWATARI, Yasuteru, TABATA, Masayoshi
Format Journal Article
LanguageJapanese
Published The Society of Polymer Science, Japan 01.06.2012
Subjects
Aromatic Polyesters
End-Capping
Interfacial Polycondensation
Phenoxy Radical
Plastic Optical Fiber
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Summary:Thermal resistant and transparent aromatic polyesters (PARs) were prepared in order to manufacture new plastic optical fibres (POF) of step-index types. The PARs were successfully obtained by using bisphenol A, iso- and tere-phthaloyl chlorides via an interfacial polycondensation (IPC) in the presence of benzoyl chloride not only as a molecular weight controller but also as an end-capping (EC) reagent for protection of the end-OH groups of the PAR molecules, together with a tetra-n-butylammonium bromide as catalyst. The resultant end-capped PAR (PAREC) increased their melt flow rates with increasing the degree of the benzoylation, and did not show a pale yellow color; this absence suggests the generation of phenoxy radicals in the POFs manufactured at temperatures higher than 260°C. The PAREC POFs may be used as local area network cables in vehicles and aircraft because of fairly low attenuation values.
ISSN:0386-2186
1881-5685
DOI:10.1295/koron.69.274