STRUCTURE TRANSFER FROM A POLYMERIC MELT TO THE SOLID-STATE .2. DEPENDENCE ON MOLECULAR-WEIGHT

被引：9

作者：

BAYER, RK ^{[1
]}

LIEBENTRAUT, F ^{[1
]}

MEYER, T ^{[1
]}

机构：

[1] FAC HSCH HAMBURG,HAMBURG,GERMANY

来源：

COLLOID AND POLYMER SCIENCE | 1992年 / 270卷 / 04期

关键词：

MELT SPINNING; POLYETHYLENE; MECHANICAL PROPERTIES; ENTANGLEMENTS; KNOTS; MOLECULAR WEIGHT;

D O I：

10.1007/BF00655848

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：

Melt spinning experiments of polyethylene, using a high quenching rate have been carried out. Molecular weight has been varied. From measurements of the mechanical properties of the monofilaments produced it is concluded that melt history influences the solid state behavior. This is reflected in the hypothesis of a transference of knots, preexisting in the melt into the solid state. Measurements of the elastic recovery allow to offer an interpretation, in which this network of knots does not percolate, until a critical value of the molecular weight M(c knot) almost-equal-to 10(5) is surpassed. The possible influence of these knots on the mobile entanglements is discussed.

引用

页码：331 / 348

页数：18

共 25 条

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[Anonymous], 1979, SCALING CONCEPTS POL

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