Crystal Structure of Poly(7-heptalactone)
نویسندگان
چکیده
The crystal structure of poly(7-heptalactone) (PHL) is presented. PHL has been synthesized by a combination ring-opening polymerization η-heptalactone and reversible addition–fragmentation chain transfer using diphenyl phosphate as catalyst. noncommercial available monomer prepared oxidation cycloheptanone. determined analysis the X-ray powder diffraction profiles electron patterns single crystals calculations lattice energy. refined with Rietveld full-profile refinement. Chains in trans planar conformation are packed an orthorhombic unit cell axes = 7.37 Å, b 5.05 c 10.07 Å according to space group symmetry P21.
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ژورنال
عنوان ژورنال: Macromolecules
سال: 2023
ISSN: ['0024-9297', '1520-5835']
DOI: https://doi.org/10.1021/acs.macromol.3c00710