By Yuri N. Khakimullin, Vladimir S. Minkin, Timur R. Deberdeev, Gennady E. Zaikov
This worthwhile publication is dedicated to difficulties of the synthesis, vulcanization, amendment, and learn of constitution and homes of hugely crammed sealants according to polysulfide oligomers (PSO). The publication summarizes info relating chemistry, synthesis know-how, constitution, and homes of liquid thiokols and thiokol-containing polyesters. It additionally offers a literary survey on chemism and mechanisms for liquid thiokols vulcanization related to oxidants or via polyaddition. The ebook describes formula rules of sealants, their homes, and alertness areas.
The ebook presents examine on vulcanization and amendment of thiokol sealants concerning thiokol-epoxy resin copolymers, unsaturated polyesters, and numerous isocyanate prepolymers. It describes reviews of mechanisms underlying vulcanization of polysulphide oligomers by means of manganese dioxide, sodium dichromate and zinc oxide, and in addition of the constitution and houses of sealants at the foundation of a liquid thiokol and advertisement “ТПМ-2” polymer counting on a chemical nature and the ratio of constituent oligomers. The publication provides details at the effect of filling fabrics on vulcanization kinetics, rheological, and physico–mechanical houses of sealants counting on the character of PSO.
The publication should be of curiosity to investigate group of workers of medical institutes and facilities constructing reactive oligomers and their compositions and learning their constitution and houses in addition to engineers operating in technology facilities or corporations operating within the zone of improvement, creation, and alertness of polysulfide oligomers and sealants.
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Additional resources for Polysulfide oligomer sealants : synthesis, properties, and applications
It is marked “Permapol” (P-2, P-3, P-5) [1, 46]. PRС (Products research and Chemicals Corporation (USA)) was the first company to have succeeded in production of thiokols. Permapol P-2 is an oligomer with end SH groups, the method for its synthesis is the same than for ZL-616 : HS-R' CHCH-O-CH2CH-O-CH2CH-R' -SH HS-R' CH3 CH3 CH3 where CH3 R' = O-C-N OH N-C-O-CH2CH2CH2H O The advantage of P-3 type polythioesters over traditional thiokol sealants consists in the absence of weak disulfide and formal structures.
Industrial Polysulfide Oligomers: Synthesis, Vulcanization, Modification (in Russian), Kazan, Novoe znanie, 175 p. 8. Minkin, V. , Nistratov, A. , Vaniev, M. , Khakimullin, Yu. , Deberdeev, R. , & Novakov, I. A. (2006). Synthesis Structure and Properties of Polysulfide Oligomers. A review collected articles from the Volgograd State Technical University, Series “Chemistry and Technology of Element organic Monomers and Polymer Materials” (in Russian) Volgograd, 3(1), 9–20. 9. Shljahter, R. , Novosjolok, F.
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