Morphology development of isotactic poly(4-methylpentene-1) during melt crystallization |
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| Authors: | C. Silvestre S. Cimmino E. Di Pace M. L. Di Lorenzo G. Orsello F. E. Karasz J. S. Lin |
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| Affiliation: | (1) Istituto di Ricerca e Tecnologia delle Materie Plastiche. CNR, Via Toiano 6, 80072 Arco Felice, (NA), Italy;(2) Department of Polymer Science and Engineering, University of Massachusetts, Amherst, MA 01003, USA;(3) Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA |
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| Abstract: | The morphology of melt-crystallized isotactic poly(4-methylpentene-1) samples, prepared by varying crystallization temperature and time, as well as annealing temperature, has been probed by small and wide angle x-ray scattering, and electron microscopy. This was then correlated with the thermal properties investigated by differential scanning calorimetry. Relationships among melting behavior, morphological evidences and X-ray results have been found. Different populations of lamellae, grown with a time-dependent sequence, can be obtained: their relative amount and thermal stability is determined by crystallization and annealing conditions. |
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