Abstract
This paper presents the developed probabilistic spatial model fragments of the structure of polyacrylonitrile fiber, the monomerization composition (condensing components of the polymer matrix), and “Polikon K” – “Polikon K1a” material. The dynamic contact angle of the investigated material was experimentally determined, and the work of adhesion (1.154 mJ/m2) and wetting (73.855 mJ/m2) of the surface material was calculated. The model of the structure of the “Polikon K1a” material indicates the most likely point of interaction of copolymer polyacrylic fiber with reactive CH3– groups of the polymer matrix, namely, the interaction with the C≡N group, by breaking one bond and forming a methylene bridge. The size of the unit cell of the model was estimated: 10.6 × 10.3 × 9.7 A. The dependence of the torsion angle near the methylene bridge on the concentration of water molecules was investigated.
Highlights
This paper presents the developed probabilistic spatial model fragments of the structure of polyacrylonitrile fiber, the monomerization composition, and “Polikon
We studied the wetting of the material surface by the method of droplet spreading (Fig. 1) using a precision optical tensiometer “Theta Lite Optical Tensiometer TL100” [4], which allows real-time measurements of the dynamic contact angle (Fig. 2)
The plane model of the “Polikon K1a” material contains a fragment of the PAN fiber consisting of elementary units of acrylonitrile, methyl acrylate, and sodium itaconate, a monomerization composition and an
Summary
This paper presents the developed probabilistic spatial model fragments of the structure of polyacrylonitrile fiber, the monomerization composition (condensing components of the polymer matrix), and “Polikon. We studied the wetting of the material surface by the method of droplet spreading (Fig. 1) using a precision optical tensiometer “Theta Lite Optical Tensiometer TL100” [4], which allows real-time measurements of the dynamic contact angle (Fig. 2). The plane model of the “Polikon K1a” material contains a fragment of the PAN fiber consisting of elementary units of acrylonitrile, methyl acrylate, and sodium itaconate, a monomerization composition and an
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