By L. M. Khananashvili, O. V. Mukbaniani, G. E. Zaikov

New fields of technology and expertise demand new fabrics with worthwhile functionality features. long term resistance to such temperatures are available simply in polymers with chains made from thermostable fragments. rather attention-grabbing during this recognize are elementorganic polymers with inorganic and organo-inorganic molecular chains. Elementorganic polymers aren't in simple terms hugely thermostable, but additionally practice good less than low temperatures, sun, humidity, climate, and so forth. therefore, those polymers (especially silicones) are greatly and successfully utilized in undefined, radio, coal, mechanical rubber, airplane, metallurgical, cloth and different industries. they're of significant application not just in undefined, but in addition in families and in medication, the place their benefits can hardly ever be over priced. the necessity to post this ebook arose with the medical and technical advancements of the decade, the reconstruction and technical upkeep of latest factories, in addition to basic adjustments in a few syntheses of elementorganic monomers and polymers. additionally, these days it's necessary to teach highly-skilled chemical engineers with a accomplished wisdom of present chemistry, of the creation know-how of elementorganic monomers and polymers, and in their features and functions.

Show description

Read Online or Download Elementorganic Monomers Technology, Properites, applications PDF

Similar organic chemistry books

Advanced Practical Organic Chemistry (2nd Edition)

The 1st version of this publication accomplished enormous luck as a result of its ease of use and functional strategy, and to the transparent writing variety of the authors. The practise of natural compounds remains to be primary to many disciplines, from the main utilized to the hugely educational and, extra tan ever isn't constrained to chemists.

Comprehensive Organic Synthesis: Oxidation

This quantity covers all tools of oxidation to be used in natural synthesis. Emphasis has been put on selectivity and practical team compatibility including useful software and purposes. the amount is greatly divided to hide oxidation of unactivated carbon-hydrogen bonds, oxidation of activated carbon-hydrogen bonds, that's to claim these adjoining to activating substituents and adjoining to heteroatoms, and oxidation of carbon-carbon double bonds.

Palladium in Organic Synthesis

Palladium Reagents and Catalysts strategies in natural Synthesis Jiro Tsuji Okayama college of technology, Okayama, Japan Palladium Reagents and Catalysts brings to man made natural chemists the numerous purposes of organopalladium chemistry, highlighting the latest discoveries during this speedily increasing box.

Organic Reaction Mechanisms

This quantity is the thirty eighth during this classical sequence. In each quantity the content material is split within the various sessions of natural response mechanisms: response of Aldehydes and Ketones and their Derivatives Reactions of Carboxylic, Phosphoric, and Sulfonic Acids and their Derivatives Oxidation and aid Carbenes and Nitrenes Nucleophilic fragrant Substitution Electrophilic fragrant Substitution Carbocations Nucleophilic Aliphatic Substitution Carbanions and Electrophilic Aliphatic Substitution removal Reactions Radical Reactions Addition Reactions: Polar Addition Addition Reactions: Cycloadditions Molecular Rearrangements An skilled crew of authors is compiling those experiences each year, in order that the reader can depend on a continual caliber of choice and presentation.

Extra info for Elementorganic Monomers Technology, Properites, applications

Example text

At subsequent increase of copper content (more than 10%) the yield does not grow, whereas the product composition deteriorates due to the formation of compounds with high chlorine content (SiCI4, HSiCI3, RSiCI3). 1. Preparation of organochlorosilanes 29 reaction products. This seems to be due to copper shielding the surface of silicon. A similar situation is observed in the direct synthesis of ethylchlorosilanes. For the direct synthesis of phenylchlorosilanes, copper content in contact mass should be significantly bigger than for the synthesis of methyland ethylchlorosilanes.

1. Preparation of organochlorosilanes 41 flux the tower, and the rest is sent through cooler 29 into pressure container 30 of the third rectification stage. The third rectification stage. From pressure container 30 the mixture of 25-40% of methyltrichlorosilane and 60-75% of dimethyldichlorosilane is sent through heater 31 at 70-65 °C to the feeding plate of rectification tower 32. Dimethyldichlorosilane in the form of tank liquid flows into tank 33, where the temperature of 85-90 °C is maintained, and from there is continously poured into collector 34.

Thus, dimethyldichlorosilane is used in the manufacture of silicone liquids, elastomers and polymers for varnishes and plastics. Methyltrichlorosilane is used for producing silicone plastics and varnishes; methyldichlorosilane and trimethylchlorosilane are used to manufacture various silicone liquids. ). Tank residues mixed with methyldichlorosilane are used in the manufacture of silicone waterproofing liquids. Some physicochemical properties of methylchlorosilanes are given in Table 3. Preparation of ethylchlorosilanes The process of ethylchlorosilane preparation by copper-catalysed ethylchloride reaction with silicon is very complex, and the mechanism of this process has not been fully established.

Download PDF sample

Rated 4.24 of 5 – based on 45 votes