Simulation of chemical modification of polymer surface

被引：16

作者：

Nazarov, V. G. ^{[1
]}

Stolyarov, V. P. ^{[1
]}

Gagarin, M. V. ^{[2
]}

机构：

[1] Ivan Fyedorov Moscow State Univ Printing Arts, Moscow 127550, Russia

[2] State Res Ctr Russian Federation, Fed State Unitary Enterprise All Russian Sci Res, Moscow 105005, Russia

来源：

JOURNAL OF FLUORINE CHEMISTRY | 2014年 / 161卷

基金：

俄罗斯基础研究基金会;

关键词：

Simulation; Chemical modification; Polymer; Surface; Fluorination; DIRECT FLUORINATION; ELEMENTAL FLUORINE; POLYETHYLENE;

D O I：

10.1016/j.jfluchem.2014.01.021

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The mathematical model describing chemical interaction of a polymer film with a reagent gas is developed. This model allows for significant changes in the chemical composition, structure, and physicochemical properties of the polymer as a result of modification. For certain types of surface modification, such as fluorination, a number of limitations and assumptions may be drawn that make it possible to perform the analytical solution of equations which are used as a basis to calculate the depths and profiles of equal fluorination degrees for various amorphous-crystalline polymers. The results of calculations of fluorination degrees conducted within the framework of the model are in fairly good agreement with the experimental data. The effects of surface layer transformed via fluorination on certain important characteristics of films and articles manufactured from polyethylene of various brands are revealed. These effects include increase in the chemical resistance of pipes, decrease in their permeability for low-molecular-mass compounds, reduction in fuel penetration of fuel tanks, and improvement in the thermal compatibility of films. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：120 / 127

页数：8

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