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The title compound, thiodiglycol dimethacrylate (TDGDMA), was synthesized from thiodiglycol and methacryloyl chloride by phase transfer catalysis reaction, and its structure was confirmed by FTIR and 1H-NMR analyses. TDGDMA possesses good polymerizability to produce a homopolymer resin with excellent transparency (T%, 90), moderate refractivity (nd20, 1.55), lower dispersivity (Abbe’s number, 50.6) and higher glass transition temperature (Tg, 119°C). Through copolymerization with styrene (St) or styrene-4,4’-bismethacryloyloxydiphenylsulfone (BPSDMA), many properties of the copolymer such as refractive index, Abbe’s number, strength, onset wavelength in the UV region and density were significantly modified. A copolymer resin with balanced properties between refractive index and dispersion was produced at the weight ratio of TDGDMA:St:BPSDMA (25:50:25), where nd20 and Abbe’s number are 1.5815 and 36.5, respectively.
The title compound, thiodiglycol dimethacrylate (TDGDMA), was synthesized from thiodiglycol and methacryloyl chloride by phase transfer catalysis reaction, and its structure was confirmed by FTIR and 1H-NMR analyzes. TDGDMA possesses good polymerizability to produce a homopolymer resin with excellent transparency (T % 90), moderate refractivity (nd 20, 1.55), lower dispersivity (Abbe’s number 50.6) and higher glass transition temperature (Tg 119 ° C) (BPSDMA), many properties of the copolymer such as refractive index, Abbe’s number, strength, onset wavelength in the UV region and density were significantly modified. A copolymer resin with balanced properties between refractive index and dispersion was produced at the weight ratio of TDGDMA : St: BPSDMA (25:50:25), where nd20 and Abbe’s number are 1.5815 and 36.5, respectively.