Higher Chemical Technological

Higher Chemical Technological Institute, Boulevard Kliment Ochridsky , No. 8, Sofia 1156, Bulgaria... 

In Chapters 3 and 11 reference was made to thermoplastic elastomers of the triblock type. The most well known consist of a block of butadiene units joined at each end to a block of styrene units. At room temperature the styrene blocks congregate into glassy domains which act effectively to link the butadiene segments into a rubbery network. Above the Tg of the polystyrene these domains disappear and the polymer begins to flow like a thermoplastic. Because of the relatively low Tg of the short polystyrene blocks such rubbers have very limited heat resistance. Whilst in principle it may be possible to use end-blocks with a higher Tg an alternative approach is to use a block copolymer in which one of the blocks is capable of crystallisation and with a well above room temperature. Using what may be considered to be an extension of the chemical technology of poly(ethylene terephthalate) this approach has led to the availability of thermoplastic polyester elastomers (Hytrel—Du Pont Amitel—Akzo). 

Pavlii VG, Zaikin AE, Kuznetsov EV (1986) Higher School Bulletin, USSR, Chemistry and Chemical Technology, 29 84... 

Spitz RD Diamines and higher amines, aliphatic. In Grayson M, Eckroth D (eds) Kirk-Othmer Encyclopedia of Chemical Technology, 3rd ed. New York, Wiley-Interscience, 1979... 

Fig. 10.19. Flow diagram of a process for primary alcohols from ethylene. (Encyclopedia of Chemical Technology, Kirk and Othmer, Web site ed., alcohols, higher aliphatic, synthetic processes, manufacture, 2002. Copyright by John Wiley Sons, Inc. and reproduced by permission of the copyright owner.)... 

Alcohols, Higher Aliphatic Synthetic Processes, in Kirk-Othmer Encyclopedia of Chemical Technology, vol. 2, 5th ed., Wiley-Interscience, Hohoken, New Jersey, 2004,... 

BA Krentsel, YV Kissin, VJ Kleiner and LL Stotskaya, Polymers and Copolymers of Higher a-Olefins, Hanser/Gardner Publications, Inc., Cincinnati, OH, p 6, 1997 YV Kissin, Athene Polymerizations with Transition Metal Catalysts, Elsevier, The Netherlands, 2008 G. Cecchin, G. Morini and F. Piemontesi, Kirk-Othmer Encyclopedia of Chemical Technology, Wiley Interscience, New York, Vol 26, p 502,2007. 

Higher School of Chemical Technology, 8010 Burgas, Bulgaria... 

N.V. Lysun, M.D. Kats, G.M. Krichevskiy, Directional synthesis of dyes with given properties regarding polyamide fibres. Proceedings of higher schools Chemistry and chemical technology (1984), 27, No 6, 700-703 (in Russian). 

L.Yu. Kokinaite, A.L. Kaziliunas, Effect of modifier and azo dyes on kinetics of photolysis and photooxidative destruction of kapron fibres. Scientific transactions of higher schools of Lithuanian SSR. Chemistry and chemical technology (1980), No 8, 32-41 (in Russian). 

Spitz, Diamines and Higher Amines, Aliphatic in Kirk-Othmer Encyclopedia of Chemical Technology vol. 7 (Wiley-Interscience, New York. 3rd ed., 1979) pp 580-602. Orphan drug developed by Merck. Review. J. M. Walshe, Orphan Drugs, F. E. Karch, Ed. (Marcel Dekker, New York, 1982) Pp 57-71-... 

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