On the intermolecular order in amorphous polycarbonate. Neutron scattering results and model calculations

Neutron scattering on isotopically substituted molecules has been used for exploration of the intermolecular order of amorphous polycarbonate (of bisphenol A). Low (wavevector) wide-angle neutron scattering experiments on differently deuterated versions of polycarbonate have been performed in the range 0.2 < q( A ̊ −1) < 3 . The scattering curves are compared with computer calculations assuming various model configurations of polycarbonate segments. Reasonable agreement was found for a model of three parallel segments each of two monomer units in a trans-trans conformation.