EFFECTS OF FLUORINATED SUBSTITUENTS ON THE REFRACTIVE-INDEX AND OPTICAL RADIATION-RESISTANCE OF METHACRYLATES

被引:28
作者
GAYNOR, J
SCHUENEMAN, G
SCHUMAN, P
HARMON, JP
机构
[1] UNIV FLORIDA,DEPT PHYS,GAINESVILLE,FL 32611
[2] OPT POLYMER RES INC,GAINESVILLE,FL 32609
[3] UNIV FLORIDA,DEPT MAT SCI,GAINESVILLE,FL 32611
关键词
D O I
10.1002/app.1993.070500919
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Novel fluorinated methacrylate polymers were synthesized. The purpose was to produce polymers with low refractive indices and increased resistance to optical radiation damage. Six different fluorinated substituents were appended on the monomer before polymerization. Optical-quality samples were prepared, and their transmission spectra, through 0.8 cm thick samples, were obtained. Each sample was tested for refractive index and glass transition temperature. The samples absorbed 10 MRad gamma radiation from a Co-60 source in an air environment; their transmission spectra were recorded immediately after irradiation and again after seven days had elapsed. As expected, increasing the fluorine content in the side chains resulted in decreased refractive indices. Fluorine content also influenced optical radiation stability. One polymer, poly (1H,1H-heptafluorobutyl methacrylate) retained superior UV/visible transmission after irradiation. (C) 1993 John Wiley & Sons, Inc.
引用
收藏
页码:1645 / 1653
页数:9
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