polymerizations
41tetrahydrofuran — /te treuh huy dreuh fyoor an/, n. Chem. a clear liquid, C4H8O, soluble in water and organic solvents, used as a solvent for resins, in polymerizations and as a chemical intermediate. [1940 45; TETRA + HYDRO 2 + FURAN] * * * …
42Johnson–Corey–Chaykovsky reaction — The Johnson–Corey–Chaykovsky reaction (sometimes referred to as the Corey–Chaykovsky reaction or CCR) is a chemical reaction used in organic chemistry for the synthesis of epoxides, aziridines, and cyclopropanes. It was discovered in 1961 by A.… …
43Ziegler–Natta catalyst — A Ziegler–Natta catalyst is a catalyst used in the synthesis of polymers of 1 alkenes (α olefins). Three types of Ziegler–Natta catalysts are currently employed: Solid and supported catalysts based on titanium compounds. They are used in… …
44boron trifluoride — noun a pungent colorless gas • Hypernyms: ↑fluoride * * * noun : a colorless pungent gas BF3 that fumes in moist air, that is made usually by reaction of a boron compound (as borax) with a fluoride (as hydrogen fluoride) and then sulfuric acid,… …
45acetyl peroxide — noun : a low melting crystalline compound (CH3CO)2O2 used especially for initiating vinyl type polymerizations …
46alfin — ˈalfə̇n adjective Etymology: alcohol + olefin : of or relating to any of various catalysts made from sodium derivatives of alcohols (as isopropyl alcohol) and olefins (as propylene) and used in certain polymerizations (as of butadiene alone or… …
47potassium persulfate — noun : a crystalline salt K2S2O8 used chiefly in oxidizing and bleaching and as a promoter of polymerizations (as in the manufacture of GR S rubber) …
48SZWARC, MICHAEL — (1909–2000), U.S. physical chemist. Born in Bedzin, Poland, Szwarc graduated from the Warsaw Polytechnic in 1932 and then studied and taught at the Hebrew University of Jerusalem (1935–42) and Manchester University (1947–52). In 1952 he went to… …
