Rearrangement of the polymer structure in the presence of high molecular weight additives

被引：1

作者：

Mar'in, AP

Borzatta, V

Bonora, M

Greci, L

机构：

[1] Univ Ancona, Dipartimento Sci Mat & Terra, I-60131 Ancona, Italy

[2] Ciba Specialty Chem, Addit Div, I-40044 Pontecchio Marconi, Italy

来源：

JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY | 1998年 / A35卷 / 7-8期

关键词：

D O I：

10.1080/10601329808002120

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 solubility, diffusion, and washing-out of four new sterically hindered amines was studied in polypropylene. It was shown that dissolution induces a strong change in polymer structure: the additives solubility at 100 degrees C passes through a maximum during time and increases with additive molecular weight. The diffusion coefficients of the additives also depend on time. The stabilizers leak from the polymer in heptane and the residual concentration remaining in the polymer depends on the additive molecular weight.

引用

页码：1299 / 1311

页数：13

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