EFFECT OF ORIENTATION ON MELTING OF ISOTACTIC POLYPROPYLENE

被引：9

作者：

IBHADON, AO

机构：

[1] Birmingham, B31 2UZ, Block 13/75, Bristol Road South

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1991年 / 43卷 / 03期

关键词：

D O I：

10.1002/app.1991.070430318

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 effect of uniaxial orientation on the melting of a commercial grade of isotactic polypropylene has been investigated by thermal analytical techniques. Orientation progressively shifts the onset of and the observed melting point to higher temperatures and increases the peak heights of differential scanning calorimetric (DSC) endotherms. The increase in melting point with orientation is attributed to the increase in configurational entropy of the extended melt into which the polymer crystallites melt.

引用

页码：567 / 571

页数：5

共 15 条

[1]

AZAR A, 1983, POLYMER, V24, P1245

[2] LIMITING AXIAL LONG PERIOD OF DRAWN POLYPROPYLENE [J].

BALTACALLEJA, FJ ;

PETERLIN, A .

JOURNAL OF POLYMER SCIENCE PART A-2-POLYMER PHYSICS, 1969, 7 (7PA2) :1275-+

[3]

DEOPURA DL, 1977, POLYMER, V18, P856

[4]

FICHERA A, 1975, MAKROMOL CHEM, V176, P1885

[5]

HAY JN, 1979, BR POLYM J, V11, P138

[6]

IBHADON AO, 1989, THESIS U BIRMINGHAM

[7]

KAMIDE K, 1972, MAKROMOLEKUL CHEM, V162, P219

[8]

KRIGBAUM WR, 1969, J POLYM SCI PP, V6, P257

[9] PLASTIC-DEFORMATION OF POLYPROPYLENE [J].

LIU, TM ;

JUSKA, TD ;

HARRISON, IR .

POLYMER, 1986, 27 (02) :247-249

[10] POST-YIELD BEHAVIOR OF LOW-DENSITY POLYETHYLENES .2. PLASTIC FRACTURE [J].

MILLS, PJ ;

HAY, JN .

POLYMER, 1985, 26 (06) :901-904

← 1 2 →