Mechanical properties of polymer compositions based on polyethylene and prepared by polymerization in situ

Волынский, А. Л.; Shtanchayev, A.Sh.; Zanegin, V.D.; Gerasimov, V. I.; Bakeyev, N.F.

doi:10.1016/0032-3950(85)90433-2

Cited by 5 publications

(3 citation statements)

References 1 publication

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“…As the second polymer component, polystyrene (PS), polymethylmethacrylate (PMMA), poly(butyl methacrylate) (PBMA), and electroconducting polymers like polyacetylene and polyaniline (PANi) were used. [10][11][12][13][14][15] For the preparation of polymer-polymer blends based on HDPE, PP, and PA-12 with PS, PMMA, and PBMA, porous polymer matrices were prepared by tensile drawing in the presence of proper monomers containing initiating agents (benzoyl peroxide) and, in some cases, cross-linking agents (ethylene glycol dimethacrylate).…”

Section: Methods For the Preparation Of Polymer-polymer Blends Via Somentioning

confidence: 99%

Structure of Polymer Blends Based on Solvent-Crazed Polymers

Yarysheva¹,

Аржакова²,

Долгова³

et al. 2007

International Journal of Polymer Analysis and Characterization

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Blends based on polymers (PET, HDPE) prepared by deformation via the mechanism of classical and delocalized solvent crazing are described. The second component of polymer blends may be represented by various polymers such as PMMA, PS, PBMA, PEG, polyaniline, etc. The above polymers are characterized by a high level of mutual dispersion of components. Structure and mechanical properties of the blends are studied.

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Section: Methods For the Preparation Of Polymer-polymer Blends Via Somentioning

confidence: 99%

Structure of Polymer Blends Based on Solvent-Crazed Polymers

Yarysheva¹,

Аржакова²,

Долгова³

et al. 2007

International Journal of Polymer Analysis and Characterization

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“…It is clearly seen that the polymer matrix used for obtaining new types of nanocomposites shows a behavior characteristic of oriented polymers. During drawing, the modulus, yield strength, and durability of the polymer increase and its elongation decreases [52].…”

Section: Mechanical Properties Of Polymer Blends Obtained By In Situ mentioning

confidence: 99%

“…In other words, unlike the known approaches for obtaining poly Thus, the radical polymerization of several monomers in a matrix of HDPE deformed in their environ ment provides a number of interesting polymer-polymer blends having a high mutual dispersion of com ponents. Using the stretching of the polymer in a liquid monomer, a wide range of crystalline polymers can be included in the number of objects suitable for creating blends by in situ polymerization, such as HDPE [43,51,52], polypropylene (PP) [53][54][55], and polyamide (PA 12) [56], blends of which are usu ally prepared only by mixing their melts. Naturally, high degrees of dispersion of components were impos sible to reach in these cases, which had an undesirable effect on the properties of the resulting materials.…”

Section: Peculiarities Of the Formation Of Polymer-polymer Blends By mentioning

confidence: 99%

Crazing as a method for preparation of polymer blends

et al. 2012

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Publications on the development of a new universal method for the preparation of poly mer-polymer blends are reviewed. This approach is based on the phenomenon of solvent crazing, which comes into play in the tensile drawing of polymers in the presence of adsorption active liquid media. It is important that solvent crazing is accompanied by the development of a unique fibillarporous structure, in which the dimensions of craze pores and fibrils do not exceed several tens of nanometers. Two approaches to the preparation of the polymer-polymer blends are described. According to the first approach, the nanoporous structure of the solvent crazed polymer is filled with the monomer, and its further in situ polymerization results in the polymer-polymer blends. The sec ond approach has been recently advanced by the authors of this publication; it involves direct penetra tion of macromolecules into the formed fibillar-porous structure of the solvent crazed polymer. Both approaches are capable of producing diverse polymeric blends with a high degree of mutual dispersion of the components. The above materials are shown to be characterized by specific mechanical, elec trical, and adsorption properties, which are due to the unique fibillar-porous structure of the solvent crazed polymer. The composition, structure, and properties of the prepared blends are controlled by the mechanism of solvent crazing and by the deformation conditions of the initial polymer. Several aspects of the practical application of the polymer blends prepared via the mechanism of solvent craz ing in adsorption active liquid media are reviewed. Fig. 5. Electron micrographs of nanocomposite HDPE-PMMA (tensile strain in the monomer, 200%) after the selective washing of (a) HDPE and (b) PMMA.

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