Solution crystallization of poly(ether ether ketone) (PEEK).
01 January 1986
The morphology of spherulites and single crystals of poly(ether ether ketone) obtained from two organic solvents (a-chloronaphthalene and benzophenone) has been studied by electron microscopy and diffraction. Spherulites were found to consist of very narrow, elongated lamellar branches that grow with the b-crystallographic axis in the radial direction. Single crystals possess a spear- like habit, with b parallel to the long axis, a transverse, and c (i.e. the molecular axis) normal to the lamellar plane. This habit becomes less anisometric with increasing growth temperature.