isobutylène
71Polyisobutylène — Général Nom IUPAC Poly(1,1 diméthyléthylène) Synonymes Polyi …
72Polyisobutène — Polyisobutylène Polyisobutylène Général Synonymes Polyisobutène No CAS …
73Tchaikovski (ville) — Tchaïkovski (ville) Pour les articles homonymes, voir Tchaïkovski (homonymie). Tchaïkovski Чайковский …
74Tchaïkovski (ville) — Pour les articles homonymes, voir Tchaïkovski (homonymie). Tchaïkovski Чайковский Coordonnées  …
75Эластомеры — Эластомер (Elastomer) под этим термином понимают полимеры, обладающие в диапазоне эксплуатации высокоэластичными свойствами. Называют резиной или эластомером любой упругий материал, который может растягиваться до размеров, во много раз… …
76initiator — See initiate. * * * ▪ polymerization a source of any chemical species that reacts with a monomer (single molecule that can form chemical bonds) to form an intermediate compound capable of linking successively with a large number of other… …
77butene — /byooh teen/, n. Chem. butylene (def. 1). [BUT(YL) + ENE] * * * ▪ chemical compound also called Butylene, any of four isomeric compounds belonging to the series of olefinic hydrocarbons. The chemical formula is C4H8. The isomeric forms… …
78butyl alcohol — Chem. any of four flammable, isomeric, liquid alcohols having the formula C4H9OH, used as solvents and in organic synthesis. Also called butanol. [1865 70] * * * ▪ chemical compound any of four organic compounds (organic compound) having… …
79carbonium ion — /kahr boh nee euhm/ an organic ion containing a positively charged carbon atom (opposed to carbanion). [CARBON + IUM] * * * ▪ chemical ion Introduction any member of a class of organic molecules with positive charges localized at a carbon… …
80elastomer — elastomeric /i las teuh mer ik/, adj. /i las teuh meuhr/, n. Chem. an elastic substance occurring naturally, as natural rubber, or produced synthetically, as butyl rubber or neoprene. [1935 40; ELAST(IC) + O + Gk méros a part] * * * ▪ chemical… …
