Hong, BK Jo, WH Lee, SC Kim, J 2024-01-21T17:08:43Z 2024-01-21T17:08:43Z 2021-09-03 1998-05 0032-3861 https://pubs.kist.re.kr/handle/201004/143109 melting behaviour of syndiotactic polystyrene (sPS) and its blend with poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) was examined by differential scanning calorimetry (d.s.c.), and the polymorphism of sPS was also investigated by X-ray diffraction. Both pure sPS and sPS/PPO blends showed three melting endotherms under our crystallization conditions. When the d.s.c. results are compared with the X-ray patterns, it is suggested that the lowest and middle melting endotherms are due to the melting of beta-and alpha-forms of sPS, respectively, whereas the highest melting endotherm comes from the melting of recrystallized sPS crystals formed during the d.s.c. scan. It is also observed that the recrystallization of sPS in sPS/PPO blends is disturbed by the presence of PPO. (C) 1998 Elsevier Science Ltd. All rights reserved. English ELSEVIER SCI LTD CRYSTAL-STRUCTURE ALPHA-FORM CRYSTALLIZATION PHASE MISCIBILITY MORPHOLOGY Correlation between melting behaviour and polymorphism of syndiotactic polystyrene and its blend with poly(2,6-dimethyl-1,4-phenylene oxide) Article 10.1016/S0032-3861(97)00480-1 1 POLYMER, v.39, no.10, pp.1793 - 1797 POLYMER 39 10 1793 1797 scie scopus 000072456500005 2-s2.0-0032069160 Polymer Science Polymer Science Article CRYSTAL-STRUCTURE ALPHA-FORM CRYSTALLIZATION PHASE MISCIBILITY MORPHOLOGY melting behaviour polymorphism syndiotactic polystyrene/poly(2,6-dimethyl-1,4-phenylene oxide) blends