We make use of a specially synthesized linear high density polyethylene with a bimodal molecular weight distribution (MWD) to demonstrate that it is possible to produce a suspension of extended-chain (shish) crystals only. Such a suspension can be generated at high temperatures, above but close to the equilibrium melting temperature of the unconstrained extended-chain crystals (T(m)(0)=141.2 de...

The in-line development of crystalline morphology and orientation during melt extrusion of low density polyethylene (LDPE) tape at nil and low haul-off speeds has been investigated using Small-Angle X-Ray Scattering (SAXS). The processing parameters, namely haul-off speed and distance down the tape-line have been varied and the resulting crystalline morphology is described from detailed analysi...

For the first time, an ultrathin type of ultra-high molecular weight polyethylene (UHMWPE) membrane only 350 nm thickness is surface modified by direct fluorination and plasma treatments. Then a notable suppression in crystallinity observed. A total four kinds thickness, from to 6 µm, are investigated correlate modification effect on thickness. Microscopically, continuous shish-kebab structure ...