Thio prepare polyurethane (Poly thio) and diagnosed manner arson 
Introduction:- 
Inorganic polymer as a macromolecule whose base unit does not contain as one of the 
main-chain elements, and which retains in solution. 
Elemental sulfur usually is present as one of the allotropic modifications of cyclic 
octomer, S8. Upon being heated, the sulfur melts and if the temerature is raised, the 
viscosity of the molten sulfur increases indicating the transition;