Scalable High Refractive Index polystyrene-sulfur nanocomposites via in situ inverse vulcanization

Author:

Wadi Vijay S.,Jena Kishore K.,Halique Kevin,Brigita Rožič ,Cmok Luka,Tzitzios Vasileios,Alhassan Saeed M.

Abstract

AbstractIn this work, we demostrate the preparation of low cost High Refractive Index polystyrene-sulfur nanocomposites in one step by combining inverse vulcanization and melt extrusion method. Poly(sulfur-1,3-diisopropenylbenzene) (PS-SD) copolymer nanoparticles (5 to 10 wt%) were generated in the polystyrene matrix via in situ inverse vulcanization reaction during extrusion process. Formation of SD copolymer was confirmed by FTIR and Raman spectroscopy. SEM and TEM further confirms the presence of homogeneously dispersed SD nanoparticles in the size range of 5 nm. Thermal and mechanical properties of these nanocomposites are comparable with the pristine polystyrene. The transparent nanocomposites exhibits High Refractive Index n = 1.673 at 402.9 nm and Abbe’y number ~ 30 at 10 wt% of sulfur loading. The nanocomposites can be easily processed into mold, films and thin films by melt processing as well as solution casting techniques. Moreover, this one step preparation method is scalable and can be extend to the other polymers.

Funder

Abu Dhabi National Oil Company

Khalifa University of Science, Technology and Research

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

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