ANNEALING OF THE DELTA-FORM OF SYNDIOTACTIC POLYSTYRENE

被引:21
作者
DECANDIA, F [1 ]
GUADAGNO, L [1 ]
VITTORIA, V [1 ]
机构
[1] UNIV SALERNO,DIPARTIMENTO FIS,I-84081 BARONISSI,ITALY
来源
JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS | 1995年 / B34卷 / 1-2期
关键词
PHASE TRANSITIONS; POLYMORPHISM; SYNDIOTACTIC POLYSTYRENE;
D O I
10.1080/00222349508219490
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The effects of thermal treatments on the phase organization in some polymorphic forms of syndiotactic polystyrene have been investigated. in particular the thermal stability of the delta form was studied using x-ray diffraction and infrared spectroscopy as analytical techniques. The obtained results show that this form, characterized by chains in helix conformation, is affected by nonequilibrium phenomena. Moreover, the transition from the delta to the gamma form occurs through an intermediate form which maintains the helix chain conformation but partially loses the crystalline order.
引用
收藏
页码:95 / 103
页数:9
相关论文
共 17 条
[1]   THERMALLY INDUCED CRYSTALLIZATION IN GLASSY SYNDIOTACTIC POLYSTYRENE [J].
DECANDIA, F ;
FILHO, AR ;
VITTORIA, V .
COLLOID AND POLYMER SCIENCE, 1991, 269 (07) :650-654
[2]   SOLVENT CRYSTALLIZED SYNDIOTACTIC POLYSTYRENE - THERMAL AND DYNAMIC-MECHANICAL BEHAVIOR [J].
DECANDIA, F ;
ROMANO, G ;
RUSSO, R ;
VITTORIA, V .
COLLOID AND POLYMER SCIENCE, 1993, 271 (05) :454-459
[3]  
DECANDIA F, 1991, MAKROMOL CHEM-RAPID, V12, P295
[4]   MORPHOLOGY AND STRUCTURE OF SYNDIOTACTIC POLYSTYRENE [J].
GREIS, O ;
XU, Y ;
ASANO, T ;
PETERMANN, J .
POLYMER, 1989, 30 (04) :590-594
[5]   POLYMORPHISM IN MELT CRYSTALLIZED SYNDIOTACTIC POLYSTYRENE SAMPLES [J].
GUERRA, G ;
VITAGLIANO, VM ;
DEROSA, C ;
PETRACCONE, V ;
CORRADINI, P .
MACROMOLECULES, 1990, 23 (05) :1539-1544
[6]  
IMMIRZI A, 1988, MAKROMOL CHEM-RAPID, V9, P761
[7]   CRYSTALLINE SYNDIOTACTIC POLYSTYRENE [J].
ISHIHARA, N ;
SEIMIYA, T ;
KURAMOTO, M ;
UOI, M .
MACROMOLECULES, 1986, 19 (09) :2464-2465
[8]  
KOBAYASHI M, 1988, POLYM PREPR JPN, V37, P26
[9]  
PETRACCONE V, 1993, MAKROMOL CHEM, V194, P1335
[10]  
RUVOLO A, 1990, MAKROMOL CHEM-RAPID, V11, P199