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Polymers 2017, 9(2), 34; doi:10.3390/polym9020034

Methacrylate-Based Copolymers for Polymer Optical Fibers

1
Technische Universität Braunschweig, Institut für Hochfrequenztechnik, Labor für Elektrooptik, Bienroder Weg 94, 38106 Braunschweig, Germany
2
Technische Universität Braunschweig, Institut für Technische Chemie, Abt. Makromolekulare Stoffe, Hans-Sommer-Str. 10, 38106 Braunschweig, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Ji Ho Youk
Received: 28 November 2016 / Revised: 10 January 2017 / Accepted: 18 January 2017 / Published: 25 January 2017
View Full-Text   |   Download PDF [2577 KB, uploaded 25 January 2017]   |  

Abstract

Waveguides made of poly-methyl-methacrylate (PMMA) play a major role in the homogeneous distribution of display backlights as a matrix for solid-state dye lasers and polymer optical fibers (POFs). PMMA is favored because of its transparency in the visible spectrum, low price, and well-controlled processability. Nevertheless, technical drawbacks, such as its limited temperature stability, call for new materials. In this work, the copolymerization technique is used to modify the properties of the corresponding homopolymers. The analytical investigation of fourteen copolymers made of methyl-methacrylate (MMA) or ethyl-methacrylate (EMA) as the basis monomer is summarized. Their polymerization behaviors are examined by NMR spectroscopy with subsequent copolymerization parameter evaluation according to Fineman-Ross and Kelen-Tüdös. Therefore, some r-parameter sets are shown to be capable of copolymerizations with very high conversions. The first applications as high-temperature resistant (HT) materials for HT-POFs are presented. Copolymers containing isobornyl-methacrylate (IBMA) as the comonomer are well-suited for this demanding application. View Full-Text
Keywords: methacrylate; copolymer; POF; reactivity ratios; Q,e-scheme methacrylate; copolymer; POF; reactivity ratios; Q,e-scheme
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zaremba, D.; Evert, R.; Neumann, L.; Caspary, R.; Kowalsky, W.; Menzel, H.; Johannes, H.-H. Methacrylate-Based Copolymers for Polymer Optical Fibers. Polymers 2017, 9, 34.

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