6533b857fe1ef96bd12b43c8
RESEARCH PRODUCT
false
Guglielmo PaganettoVito Di NotoAntonio MarigoAntonino MartoranaCarla MaregaRoberto Zannettisubject
chemistry.chemical_classificationDiffractionMaterials scienceDepolarizationPolymerAtmospheric temperature rangeKinetic energylaw.inventionCrystallographychemistryOptical microscopeChemical engineeringlawPolymer chemistryCrystalliteCrystallizationdescription
A structural investigation is described of poly(L-lactic acid) by best fitting of powder X-ray diffraction patterns. The examined sample shows the already known pseudo-orthorhombic α-form, and it was possible to determine the location of the two 103 polymeric helices in the unit cell and the size distribution of the crystallites. Furthermore, a study is reported of the crystallization kinetics of the above cited polymer by light depolarization measurements in an optical microscope. The crystallization kinetic constants in bulk were evaluated in a temperature range (70–165°C) wider than that previously resulting from measurements of radial growth of spherulites.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1992-07-01 | Die Makromolekulare Chemie |