화학공학소재연구정보센터
Macromolecular Rapid Communications, Vol.35, No.2, 123-132, 2014
Systematic Studies of Morphological Changes of Precision Polyethylene
The morphological changes of polyethylenes bearing precisely spaced defects are reviewed, focusing on the effects of defect frequency, size, and functionality on crystallization and crystalline structure. The precise defect interval is imparted through acyclic diene metathesis polymerization of structurally symmetric diene monomers. Studies have included structural characterization by differential scanning calorimetry, wide-angle X-ray scattering, small-angle X-ray scattering (SAXS), and infrared spectroscopy. The collective results are presented separately for functionalized polyethylenes and for those containing alkyl chain branches, as these two classes of polymers vary greatly in morphology.