Synthesis and characterization of thianthrene-based poly(phenylene sulfide)s with high refractive index over 1.8

Highly refractive thianthrene-based poly(phenylene sulfide)s (TPPSs) have been developed. The TPPSs were prepared from 2,7-difluorothianthrene and dithiols, including 4,4′-thiobisbenzenethiol (TBBT), m-benzenedithiol (mBDT), or sodium sulfide nonahydrate based on aromatic nucleophilic substitution reactions, and showed excellent thermal stabilities such as relatively high glass transition temperatures in the range of 143–147 °C and 5% weight-loss temperatures over 430 °C. All of the TPPSs exhibited very high refractive indices reaching 1.8020 along with a high transparency in the visible region and low birefringence in the range of 0.0037–0.0039.

[1]  Jingang Liu,et al.  Synthesis and characterization of organo-soluble thioether-bridged polyphenylquinoxalines with ultra-high refractive indices and low birefringences , 2010 .

[2]  Tomoya Higashihara,et al.  Highly Refractive Poly(phenylene thioether) Containing Triazine Unit , 2010 .

[3]  Jingang Liu,et al.  High refractive index polymers: fundamental research and practical applications , 2009 .

[4]  Tomoya Higashihara,et al.  Synthesis of high‐refractive index polyimide containing selenophene unit , 2009 .

[5]  M. Robb,et al.  Poly(arylene sulfide)s by Nucleophilic Aromatic Substitution Polymerization of 2,7-Difluorothianthrene , 2009 .

[6]  Tomoya Higashihara,et al.  Synthesis and characterization of highly refractive polyimides derived from 2,7-bis(4′-aminophenylenesulfanyl)thianthrene-5,5,10,10-tetraoxide and aromatic dianhydrides , 2009 .

[7]  Shinji Ando,et al.  Optically Transparent Sulfur-Containing Polyimide−TiO2 Nanocomposite Films with High Refractive Index and Negative Pattern Formation from Poly(amic acid)−TiO2 Nanocomposite Film , 2009 .

[8]  Shinji Ando,et al.  Synthesis of High Refractive Index Polyimides Derived from 1,6-Bis(p-aminophenylsulfanyl)-3,4,8,9-tetrahydro-2,5,7,10-tetrathiaanthracene and Aromatic Dianhydrides , 2008 .

[9]  Shinji Ando,et al.  Synthesis and properties of highly refractive polyimides derived from fluorene‐bridged sulfur‐containing dianhydrides and diamines , 2008 .

[10]  Jingang Liu,et al.  Highly Refractive Polyimides Derived from 2,8-Bis(p-aminophenylenesulfanyl)dibenzothiophene and Aromatic Dianhydrides , 2008 .

[11]  Jingang Liu,et al.  Highly Refractive and Transparent Polyimides Derived from 4,4‘-[m-Sulfonylbis(phenylenesulfanyl)]diphthalic Anhydride and Various Sulfur-Containing Aromatic Diamines , 2007 .

[12]  Jingang Liu,et al.  High refractive index polyimides derived from 2,7-Bis(4-aminophenylenesulfanyl) thianthrene and aromatic dianhydrides , 2007 .

[13]  Toshitaka Nakamura,et al.  Enhanced Coupling of Light from Organic Electroluminescent Device Using Diffusive Particle Dispersed High Refractive Index Resin Substrate , 2006 .

[14]  Young‐gu Ju,et al.  Numerical Analysis of High-Index Nano-Composite Encapsulant for Light-Emitting Diodes , 2005, physics/0511010.

[15]  Mitsuhito Suwa,et al.  High Refractive Index Positive Tone Photo-sensitive Coating , 2006 .

[16]  D. Knauss,et al.  Thianthrene as an activating group for the synthesis of poly(aryl ether thianthrene)s by nucleophilic aromatic substitution , 2004 .

[17]  K. Kitamura,et al.  Fabrication Method of Double-Microlens Array Using Self-Alignment Technology , 2004 .

[18]  T. Fujigaya,et al.  Density Functional Theory Calculations of Photoabsorption Spectra of Organic Molecules in the Vacuum Ultraviolet Region , 2002 .

[19]  Masahiro Yoshida,et al.  NOVEL THIOPHENE METHACRYLATES FOR MATERIALS OF HIGH REFRACTIVE INDEX , 1999 .

[20]  Shinji Ando,et al.  Synthesis, characterization, and optical properties of metal-containing fluorinated polyimide films , 1998 .