title: Decreasing the alkyl branch frequency in precision polyethylene: pushing the limits toward longer run lengths.
abstract: A symmetrical α,ω-diene monomer with a 36 methylene run length was synthesized and polymerized, and the unsaturated polymer was hydrogenated to generate precision polyethylene possessing a butyl branch on every 75th carbon (74 methylenes between branch points). The precision polymer sharply melts at 104 °C and exhibits the typical orthorhombic unit cell structure with two characteristic wide-angle X-ray diffraction (WAXD) crystalline peaks observed at 21.5° and 24.0°, corresponding to reflection planes (110) and (200), respectively.
authors.affiliation: Center for Macromolecular Science and Engineering, The George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, USA.
authors.forename: Bora
authors.initials: B
authors.lastname: Inci
authors.forename: Kenneth B
authors.initials: KB
authors.lastname: Wagener