Cross-linking reaction of poly(4-vinylpyridine) cylindrical microdomains of poly(α-methylstyrene)-block-poly(4-vinylpyridine) films and characterization of soluble ribbon-like nanopolymers

The ribbon-like nanopolymers were prepared by the cross-linking reaction of poly(alpha-methylstyrene)-block-poly(4-vinylpyridine) (PMS-block-P4VP) diblock copolymer films exhibiting P4VP cylindrical microdomains with the vapour of I,4-dibromobutane in the solid state. It was indicated from the transmission electron microscopy (TEM) and the small-angle X-ray scattering (SAXS) that these cross-linked products had a structure of ribbon-like nanopolymers. It was found from the curve fitting on the static light scattering (SLS) intensity that such nanopolymers were in agreement with the conformation of the Gaussian model. (C) 1999 Elsevier Science Ltd. All rights reserved.