Polymer Science Series C

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Study of the adhesive strength of Thiokol-based sealant-metal joints
Polymer Science Series C - Tập 49 - Trang 145-148 - 2007
Yu. A. Ionov, Yu. L. Morozov
The effect of test conditions on the work of fracture of Thiokol-based sealants containing different dispersed fillers is studied. Carbon black, titanium dioxide, and hydrophobized natural chalk are used as fillers. The influence of an increase in a single defect is estimated to predict the long-term adhesive strength between the Thiokol-based sealants and different materials. The mechanism and th...... hiện toàn bộ
Reversible deactivation radical polymerization of polyfunctional monomers
Polymer Science Series C - Tập 57 - Trang 20-31 - 2015
S. A. Kurochkin, V. P. Grachev
In this review, the results of modern theoretical and experimental investigations of three-dimensional reversible-deactivation radical polymerization are discussed. The most important factors affecting the critical gelation conversion, the probability of cyclization, and the topological structures of polymers are underlined. Examples of the most promising application of the reversible deactivation...... hiện toàn bộ
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Polymer Science Series C - Tập 58 - Trang 1-1 - 2016
A. N. Ozerin, J. M. Kenny
Metathesis Polymerization in Ionic Media
Polymer Science Series C - Tập 61 - Trang 2-16 - 2019
D. O. Ponkratov, A. S. Shaplov, Ya. S. Vygodskii
The article summarizes the literature data on polymer synthesis by olefin and acetylene metathesis in ionic liquid media—salts in the liquid state—at room temperature or close to it. The features and methods of optimization of polymerization process in ionic media, including those using ionic catalysts are discussed. The possibility of multiple use of ionic solvents and catalysts dissolved in them...... hiện toàn bộ
Structure and thermal properties of oligomeric salts of m-carboranedicarboxylic acid
Polymer Science Series C - Tập 51 - Trang 74-80 - 2009
M. A. Surikova, E. A. Baryshnikova, N. I. Bekasova, Yu. L. Slovokhotov, I. S. Neretin, L. I. Komarova, I. O. Volkov
X-ray diffraction analysis, X-ray absorption fine-structure spectroscopy, powder diffractometry, and IR spectroscopy have been employed to investigate the structure and thermal properties of oligomeric salts of m-carboranedicarboxylic acid. Oligomeric salts of m-carboranedicarboxylic acid and bivalent copper and zinc are shown to be ladder polymers in which m-carboranedicarboxylic acid plays the r...... hiện toàn bộ
Polyheteroarylenes as Promising Heat-Resistant Polymers
Polymer Science Series C - Tập 62 - Trang 75-77 - 2020
Morphological Transformations in the Process of Coagulation of Cellulose Solution in N-Methylmorpholine N-Oxide with Isobutanol
Polymer Science Series C - Tập 63 - Trang 161-169 - 2021
I. S. Makarov, L. K. Golova, M. I. Vinogradov, M. V. Mironova, N. A. Arkharova, V. V. Klechkovskaya, V. G. Kulichikhin
Evolution of the morphology of cellulose solutions in N-methylmorpholine-N-oxide during coagulation with a “soft” coagulant, isobutyl alcohol, at different temperatures is considered. Using optical interferometry and transmitted and scanning electron microscopy the mechanism of phase separation of the system to form a polymer phase is studied depending on the temperature of alcohol. It is shown th...... hiện toàn bộ
Carbon plastics based on thermoplastic polyimide binders modified with nanoparticles
Polymer Science Series C - Tập 58 - Trang 16-25 - 2016
V. E. Yudin, V. M. Svetlichnyi
Polyimides (PIs) crystallized from melts are promising thermally stable, heat-resistant plastics with high destruction viscosities. Nanocomposites that in turn serve as matrixes for carbon plastics can be obtained on the basis of PIs filled with carbon nanoparticles of various structures and morphologies. The presence of the composite-in-composite structure gives rise to the enhancement of dissipa...... hiện toàn bộ
Behavior of hyperbranched polymers in solutions
Polymer Science Series C - Tập 53 - Trang 107-117 - 2011
A. P. Filippov, E. V. Belyaeva, E. B. Tarabukina, A. I. Amirova
Hyperbranched polycarbosilanes are investigated by the methods of molecular hydrodynamics and optics. Dependences of the hydrodynamic and conformational properties of these polymers on their molecular mass, the length of linear chains between branching points, and the chemical structure of end groups are analyzed. The hydrodynamic behavior of hyperbranched polycarbosilanes is explained by the fact...... hiện toàn bộ
Cyclododecene in Olefin Metathesis: Polymerization and Macromolecular Cross-Metathesis with Polynorbornene
Polymer Science Series C - Tập 61 - Trang 120-133 - 2019
Yu. I. Denisova, V. A. Zhigarev, M. L. Gringolts, G. A. Shandryuk, A. S. Peregudov, E. Sh. Finkelshtein, Y. V. Kudryavtsev
The reaction of macromolecular cross-metathesis of polynorbornene and polydodecenamer catalyzed by the first-generation Grubbs Ru-carbene complex is studied for the first time. Polydodecenamer with high-molecular-weight characteristics (Mw = 406 × 103, Ð = 2.5) and a yield of 96% is synthesized by the ring-opening metathesis polymerization of cyclododecene mediated by the second-generation Grubbs ...... hiện toàn bộ
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