Abstract
Epitaxial crystallization of some aliphatic polyesters and polycaprolactam on uniaxially oriented polyethylene, polypropylene, polyoxymethylene, and polycaprolactam were studied. Only caprolactone among the aliphaticpolyesters crystallized epitaxially on drawn polycaprolactam. Aliphatic polyester epitaxy on aliphatic polyamide isthought to be affected by the interaction of the ester groups with the amide groups. Polycaprolactam epitaxy onhigh density polyethylene was observed, though polyethylene crystallized randomly on drawn polycaprolactam.Polycaprolactone crystallized in the form of spherulites on drawn polypropylene. This result is probably due tothe remarkable lattice misfit in three directions and lower crystallinity of the substrate.
