Sulfur-containing polymers from terpolymerization of active methylene compounds, carbon disulfide, and dihalohydrocarbons: synthesis and properties

2019 ◽  
Vol 10 (39) ◽  
pp. 5333-5338 ◽  
Author(s):  
Chen Zhao ◽  
Xianghe Meng ◽  
Rou Lu ◽  
Haiming Xie ◽  
Jun Liu
Keyword(s):  
Refractive Index ◽  
Carbon Disulfide ◽  
High Refractive Index ◽  
Molecular Weights ◽  
Active Methylene Compounds ◽  
Active Methylene ◽  
Sulfur Containing

Sulfur-containing polymers with a high refractive index were synthesized via terpolymerization of active methylene compounds, CS2, and dihalohydrocarbons in excellent yields with high molecular weights.

scholarly journals Application of Commercially Available Anhydrous Potassium Fluoride for a Convenient Synthesis of Ketene Dithioacetals

1999 ◽  
Vol 23 (8) ◽  
pp. 492-493
Author(s):  
Sabir H. Mashraqui ◽  
Harini Hariharasubrahmanian
Keyword(s):  
Carbon Disulfide ◽  
Alkylating Agent ◽  
Potassium Fluoride ◽  
Solid Support ◽  
Ambient Conditions ◽  
Ketene Dithioacetals ◽  
Convenient Synthesis ◽  
Active Methylene Compounds ◽  
Active Methylene

Commercially available anhydrous KF without activation or solid support promotes condensation between active methylene compounds, carbon disulfide and an alkylating agent in dry DMF to allow the preparation of a variety of ketene dithioacetals in fair to good yields under ambient conditions.

Synthesis and characterization of phosphorus- and sulfur-containing aromatic polyimides for high refractive index

Polymer ◽  
2018 ◽  
Vol 136 ◽  
pp. 143-148 ◽  
Author(s):  
Hyeonil Kim ◽  
Bon-Cheol Ku ◽  
Munju Goh ◽  
Hyeonuk Yeo ◽  
Heung Cho Ko ◽  
...  
Keyword(s):  
Refractive Index ◽  
High Refractive Index ◽  
Synthesis And Characterization ◽  
Aromatic Polyimides ◽  
Sulfur Containing

Sulfur containing optical plastics and its ophthalmic lenses applications

e-Polymers ◽  
2008 ◽  
Vol 8 (1) ◽  
Author(s):  
G. S. Jha ◽  
G. Seshadri ◽  
A. Mohan ◽  
R. K. Khandal
Keyword(s):  
Refractive Index ◽  
Fiber Optics ◽  
High Refractive Index ◽  
Linear Optics ◽  
Non Linear Optics ◽  
Plastic Materials ◽  
Different Types ◽  
Optical Applications ◽  
Sulfur Containing ◽  
Optical Plastics

AbstractPlastics produced from the sulfur-based monomer are excellent materials with many optical applications such as ophthalmic lenses, fiber optics and non- linear optics. High refractive index plastic materials are able to reduce the curvature, edge and center thickness of lenses. Sulfur containing plastics such as sulfide, polysulfide, and sulfur containing vinyl compound, thioacrylate, polythiol and isocyanate/isothiocyanate based monomers have demonstrated high refractive index, high Abbe number, good impact strength, excellent machinability, good tintability and good transmittance. In the present article, various sulfur containing plastics with different types of monomers for ophthalmic lens applications are reviewed.

Optically Transparent Sulfur-containing Semi-alicyclic Polyimide with High Refractive Index

2010 ◽  
Vol 39 (4) ◽  
pp. 392-393 ◽  
Author(s):  
Yu Nakagawa ◽  
Tomohito Ogura ◽  
Tomoya Higashihara ◽  
Mitsuru Ueda
Keyword(s):  
Refractive Index ◽  
High Refractive Index ◽  
Optically Transparent ◽  
Sulfur Containing

Carbon Disulfide. III. Reaction with Active Methylene Compounds. The Infrared and Ultraviolet Spectra of the Desaurins

1971 ◽  
Vol 49 (9) ◽  
pp. 1467-1476 ◽  
Author(s):  
Peter Yates ◽  
Thomas R. Lynch ◽  
Donald R. Moore
Keyword(s):  
Carbon Disulfide ◽  
Strong Interaction ◽  
Fermi Resonance ◽  
Carbonyl Groups ◽  
Ultraviolet Spectra ◽  
Weak Intensity ◽  
Active Methylene Compounds ◽  
Active Methylene ◽  
Related Compounds

The position of the carbonyl-stretching bands in the i.r. spectra of the desaurins, 2,4-bis(acylmethylene)- and 2,4-bis(carboxymethylene)-1,3-dithetane derivatives, establishes that there is a strong interaction between the sulfur atoms and the carbonyl groups. This is considered to involve mainly conjugative interaction rather than interaction through space, although the latter may account for the abnormally weak intensity of the carbonyl-stretching bands. These bands are split in the case of several desaurins and related compounds, and evidence has been obtained in one case that the splitting is due to Fermi resonance. The u.v. spectra of the desaurins and related compounds also indicate a strong conjugative interaction between the sulfur atoms and the carbonyl groups.

Sulfur-containing silsesquioxane hybrids with high refractive index and high Abbe number

2012 ◽  
Vol 291 (5) ◽  
pp. 1085-1094 ◽  
Author(s):  
Hideharu Mori ◽  
Kouhei Takahashi ◽  
Ryo Koizumi ◽  
Kentaro Ohmori ◽  
Motohiko Hidaka
Keyword(s):  
Refractive Index ◽  
High Refractive Index ◽  
Sulfur Containing

Optical material of high refractive index resin composed of sulfur-containing aromatic methacrylates

2000 ◽  
Vol 76 (1) ◽  
pp. 50-54 ◽  
Author(s):  
Tatsuhito Matsuda ◽  
Yasuaki Funae ◽  
Masahiro Yoshida ◽  
Tetsuya Yamamoto ◽  
Tsuguo Takaya
Keyword(s):  
Refractive Index ◽  
High Refractive Index ◽  
Optical Material ◽  
Sulfur Containing
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