Crystallization of a low molecular weight polyethylene and paraffins under a temperature gradient

被引：10

作者：

Asano, T ^{[1
]}

Mina, MF ^{[1
]}

Nishida, A ^{[1
]}

Yoshida, S ^{[1
]}

Fujiwara, Y ^{[1
]}

机构：

[1] Shizuoka Univ, Fac Sci, Shizuoka 4228529, Japan

来源：

JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS | 2001年 / B40卷 / 3-4期

关键词：

crystallizing plane; paraffin; polyethylene; temperature gradient; X-ray diffraction;

D O I：

10.1081/MB-100106164

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A low molecular weight polyethylene (PE) and even-number paraffins were crystallized under a temperature gradient. Highly oriented crystalline textures were developed by the temperature slope crystallization. The in situ crystallizing surface was observed by an optical microscope and X-ray diffraction. Polyethylene has a b-axis orientation in which the lamellar normal and crystalline c-axis are perpendicular to the temperature gradient. On the contrary, in the even-number paraffins, both axes are parallel to the temperature gradient. The results of the in situ measurements and the crystalline orientation are compared and discussed for both cases.

引用

页码：355 / 367

页数：13

共 19 条

[1] MELT-CRYSTALLIZATION OF NORMAL-ALKANES AND POLYETHYLENE IN A TEMPERATURE-GRADIENT .1. CRYSTALLINE ORIENTATION OF GROWN SPECIMENS [J].