A. Drury et al., POLY(5-TERT-BUTYL)BENZOTHIOPHENE - A SOLUBLE FORM OF POLYISOTHIANAPHTHENE WITH A LARGE NONLINEAR-OPTICAL RESPONSE, Journal of materials chemistry (Print), 8(11), 1998, pp. 2353-2355
A soluble form of polybenzothiophene has been produced and chemically
characterised. NMR spectroscopy indicates that there is a large quinoi
dal character contribution to the ground state of the polymer. The thi
rd order nonlinear optical properties of the polymer have been probed
and it is found that the response is relatively large in the near-infr
ared region..