Crystallization of s-polypropylene: a qualitative change in the kinetics induced by the temperature of the melt

被引:10
作者
Heck, B [1 ]
Strobl, G [1 ]
机构
[1] Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany
关键词
D O I
10.1007/s00396-003-0997-8
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The crystallization of syndiotactic polypropylene (sPP) can be strongly affected by the temperature of the melt prior to cooling to the crystallization temperature. We observed, for a commercial sample, a variation in the form of the crystallization isotherm that cannot be explained simply on the basis of a changing number of growing hedrites.
引用
收藏
页码:511 / 513
页数:3
相关论文
共 8 条
[1]   MEMORY EFFECTS IN ISOTHERMAL CRYSTALLIZATION .2. ISOTACTIC POLYPROPYLENE [J].
ALFONSO, GC ;
ZIABICKI, A .
COLLOID AND POLYMER SCIENCE, 1995, 273 (04) :317-323
[2]   ISOTHERMAL LAMELLAR THICKENING AND THE DISTRIBUTION OF THERMAL-STABILITY IN SPHERULITIC ISOTACTIC POLY(4-METHYLPENTENE-1) [J].
BASSETT, DC ;
PATEL, D .
POLYMER, 1994, 35 (09) :1855-1862
[3]   Direct observation of growth of lamellae and spherulites of a semicrystalline polymer by AFM [J].
Li, L ;
Chan, CM ;
Yeung, KL ;
Li, JX ;
Ng, KM ;
Lei, YG .
MACROMOLECULES, 2001, 34 (02) :316-325
[4]   TEMPERATURE-DEPENDENCE OF STRUCTURE AND MORPHOLOGY OF SYNDIOTACTIC POLYPROPYLENE AND EPITAXIAL RELATIONSHIPS WITH ISOTACTIC POLYPROPYLENE [J].
LOVINGER, AJ ;
DAVIS, DD ;
LOTZ, B .
MACROMOLECULES, 1991, 24 (02) :552-560
[5]   Critical strains determining the yield behavior of s-PP [J].
Men, Y ;
Strobl, G .
JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS, 2001, B40 (05) :775-796
[6]   CRYSTALLIZATION, MELTING AND MORPHOLOGY OF SYNDIOTACTIC POLYPROPYLENE FRACTIONS .2. LINEAR CRYSTAL-GROWTH RATE AND CRYSTAL MORPHOLOGY [J].
RODRIGUEZARNOLD, J ;
BU, ZZ ;
CHENG, SZD ;
HSIEH, ET ;
JOHNSON, TW ;
GEERTS, RG ;
PALACKAL, SJ ;
HAWLEY, GR ;
WELCH, MB .
POLYMER, 1994, 35 (24) :5194-5201
[7]   Crystalline memory effect in isothermal crystallization of syndiotactic polypropylenes: effect of fusion temperature on crystallization and melting behavior [J].
Supaphol, P ;
Lin, JS .
POLYMER, 2001, 42 (23) :9617-9626
[8]   MORPHOLOGY OF SYNDIOTACTIC POLYPROPYLENE [J].
THOMANN, R ;
WANG, C ;
KRESSLER, J ;
JUNGLING, S ;
MULHAUPT, R .
POLYMER, 1995, 36 (20) :3795-3801