Solution properties and chain flexibility of poly(thiocarbonate) from 1,1-bis(4-hydroxyphenyl)phenyl ethane

The dilute solution properties of poly[oxythiocarbonyloxy-1,4-phenylene(methyl)phenyl methylene-1,4-phenylene] (PMPhT) in θ and in good solvents were studied by viscosity, osmotic pressure and size exclusion chromatography measurements. The unperturbed dimensions were determined and the Kuhn-Mark-Houwink-Sakurada (KMHS) relations were established. The characteristic ratio value for this polymer is compared with those previously found for other poly(thiocarbonates). The flexibility of the chain is discussed in terms of the influence of the phenyl group of the side chain.