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Crystals of precise acid- and ion-containing polyethylenes were prepared from solution. While large pendant groups on polyethylene backbones are typically excluded from the crystalline domain, the precisely-placed acid and ionic functional groups are accommodated into the solution-grown crystals. Polyethylene containing carboxylic acid pendant groups on every 21st carbon atom (p21AA) grows into rectangular...
Organic–inorganic composite membranes are formed by nano-sized alumina particles uniformly dispersed in the poly(vinylidene fluoride) solution (19% polymer weight). Membranes were prepared by phase inversion process and were characterized by ultrafiltration (UF) experiments in terms of water flux, molecular weight cut-off for the wet membranes. Contact angle between water and the membrane surface...
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