Crystallization behavior of syndiotactic poly(propylene) freeze-dried fromtoluene at very dilute concentration

Authors
Sun, Q Fu, Q Xue, G Chen, W
Citation
Q. Sun et al., Crystallization behavior of syndiotactic poly(propylene) freeze-dried fromtoluene at very dilute concentration, MACRO RAPID, 22(14), 2001, pp. 1182-1185
Citations number
26
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR RAPID COMMUNICATIONS
ISSN journal
10221336 → ACNP
Volume
22
Issue
14
Year of publication
2001
Pages
1182 - 1185
Database
ISI
SICI code
1022-1336(20010928)22:14<1182:CBOSPF>2.0.ZU;2-Y
Abstract
Syndiotactic poly(propylene)s (s-PPs) were freeze-dried from toluene soluti ons of various concentrations. FT-IR spectroscopy and wide-angle X-ray diff raction were used to characterize the s-PPs prepared. The isothermal crysta llization behavior was also investigated by means of differential scanning calorimetry. The disentangled particles are of high crystallinity and show crystallization rates. A trans-planar conformation is developed when s-PP w as freeze-dried from more dilute solution.