High pressure crystallized poly(ethylene terephthalate): high crystallinity and large extended-chain crystals

Authors
Li, LB Huang, R Lu, A Nie, F Hong, SM Wang, CM Zhong, YM Wang, D
Citation
Lb. Li et al., High pressure crystallized poly(ethylene terephthalate): high crystallinity and large extended-chain crystals, POLYMER, 41(18), 2000, pp. 6943-6947
Citations number
9
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER
ISSN journal
00323861 → ACNP
Volume
41
Issue
18
Year of publication
2000
Pages
6943 - 6947
Database
ISI
SICI code
0032-3861(200008)41:18<6943:HPCPTH>2.0.ZU;2-N
Abstract
High-pressure crystallized poly(ethylene terephthalate) samples were invest igated with differential scanning calorimetry and scanning electron microsc opy. Poly(ethylene terephthalate) (PET) extended-chain crystals with thickn ess up to 6 mu m were formed under high pressure. Calorimetric measurements showed that the highest melting point of these samples was 553.13 K withou t superheating, and the melting enthalpy was up to 138.2 J/g, higher than t he value of ideal PET perfect crystals used by some researchers. (C) 2000 E lsevier Science Ltd. All rights reserved.