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Preparation and characterization of gradient refractive index plastic rods with small calibers
Author(s) -
Liu JuiHisang,
Chen JiunnLang,
Wang HungYu,
Tsai FuRen
Publication year - 2000
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/(sici)1439-2054(20000101)274:1<31::aid-mame31>3.0.co;2-6
Subject(s) - materials science , refractive index , methyl methacrylate , rod , monomer , polymerization , prepolymer , high refractive index polymer , dopant , composite material , poly(methyl methacrylate) , methacrylate , diffusion , polymer chemistry , polymer , optoelectronics , polyurethane , doping , medicine , alternative medicine , pathology , thermodynamics , physics
A series of gradient refractive index (GRIN) plastic rods with diameters of 2–4 mm were fabricated using the centrifugal diffusion polymerization (CDP) technique. Methyl methacrylate (MMA) was used as the monomer having a lower refractive index, and poly‐(methyl methacrylate) (PMMA) was used as a prepolymer dopant. The reactive benzyl methacrylate (BzMA), and an unreactive agent chosen from bromonaphthalene (BN) and diphenyl sulfide (DS) with higher refractive index were used as the second component of the feed mixture. Effects of feed composition, centrifugal conditions, and initiator concentration on the optical characteristics of plastic GRIN rods are investigated. Refractive index profiles and image transmission qualities of the GRIN rods prepared in this investigation are estimated.