| Abstract: | Nanometre‐sized poly(vinylidene fluoride) (PVDF) particle domains in a confined space were obtained by blending PVDF with excess poly(methyl methacrylate) (PMMA). When these particles were small enough they showed β‐form structure, which was different from the structure of bigger particles or PVDF bulk. However, the β‐form was thermodynamically metastable because it could eventually be transformed to a more stable phase by annealing at a certain temperature. Larger particle domains were of identical phase to the bulk, indicating that small size favours the formation of the β‐form. © 2000 Society of Chemical Industry |
