Special Features of Network Formation by Chain Crosslinking Copolymerization

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Title:Special Features of Network Formation by Chain Crosslinking Copolymerization
Creators:
Dušek, Karel
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 58, 10, pp. 2245-2265

Abstract

Special features of free-radical crosslinking copolymerization and the structure of the resulting products have been reviewed. Characteristic is the effect of spatial correlations on the apparent reactivity of pendant double bonds. These correlation make the apparent reactivity in the course of copolymerization to increase (cyclization) and decrease (steric hindrances). At intermediate and higher concentrations of the crosslinker, compact structures are formed which are internally crosslinked. Only pendant double bonds in the peripheral layer are able to take part in polymerization reactions whereas the internal ones cannot react. The state of theoretical simulations of this structure growth is discussed with a special emphasis on the development of the kinetic (coagulation) network formation theories so that the above mentioned features may be taken into account. Also, the important role of the presence of a diluent during polymerization id discussed. It can result in a change of network chain conformations necessary for networks exhibiting volume phase transitions. Alternatively, it can induce liquid-gel phase separations resulting in inhomogeneous networks having a variety of morphologies.

Title:Special Features of Network Formation by Chain Crosslinking Copolymerization
Creators:
Dušek, Karel
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:58
Number:10
Page Range:pp. 2245-2265
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19932245UNSPECIFIED
ID Code:344
Item Type:Article
Deposited On:06 Feb 2009 17:00
Last Modified:06 Feb 2009 16:00

Citation

Dušek, Karel (1993) Special Features of Network Formation by Chain Crosslinking Copolymerization. Collection of Czechoslovak Chemical Communications, 58 (10). pp. 2245-2265. ISSN 0010-0765

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