TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The epoxide compound is selected from ethylene oxide, propylene oxide, butene oxide, pentene oxide, hexene oxide, octene oxide, decene oxide, dodecene oxide, tetradecene oxide, hexadecene oxide, octadecene oxide, butadiene monoxide, 1,2-epoxide-7-octene, epifluorohydrin, epichlorohydrin, epibromohydrin, glycidyl methyl ether, glycidyl ethyl ether, glycidyl normal-propyl ether, glycidyl sec-butyl ether, glycidyl normal or isopentyl ether, glycidyl normal-hexyl ether, glycidyl normal-heptyl ether, glycidyl normal-octyl or 2-ethyl-hexyl ether, glycidyl normal or isononyl ether, glycidyl normal-decyl ether, glycidyl normal-dodecyl ether, glycidyl normal-tetradecyl ether, glycidyl normal-hexadecyl ether, glycidyl normal-octadecyl ether, glycidyl normalicocyl ether, isopropyl glycidyl ether, butyl glycidyl ether, tert-butyl glycidyl ether, 2-ethylhexyl glycidyl ether, allyl glycidyl ether, cyclopentene oxide, cyclohexene oxide, cyclooctene oxide, cyclododecene oxide, alpha-pinene oxide, 2,3-epoxide norbonene, limonene oxide, dieldrin, 2,3-epoxide propyl benzene, styrene oxide, phenyl propylene oxide, stilbene oxide, chlorostilbene oxide, dichlorostilbene oxide, 1,2-epoxy-3-phenoxypropane, benzyl oxymethyl oxirane, glycidyl-methylphenyl ether, chlorophenyl-2,3-epoxide propyl ether, epoxypropyl methoxyphenyl ether, biphenyl glycidyl ether, glycidyl naphthyl ether, glycidyl acetic acid ester, glycidyl propionate, glycidyl butanoate, glycidyl normal-pentanoate, glycidyl normal-hexanoate, glycidyl heptanoate, glycidyl normal-octanoate, glycidyl 2-ethyl hexanoate, glycidyl normal-nonanoate, glycidyl normal-decanoate, glycidyl normal-dodecanoate, glycidyl normal-tetradecanoate, glycidyl normal-hexadecanoate, glycidyl normal-octadecanoate, and glycidyl icosanoate.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The aliphatic polycarbonate is of formula (I). The aliphatic polycarbonate is prepared by using a complex compound of formula (II) as a catalyst, where nitrate or acetate anion is coordinated to M'. The aliphatic polycarbonate is selected from poly(propylene carbonate) (PPC) obtained by copolymerization of polypropylene oxide and carbon dioxide; poly(propylene-cyclohexene carbonate) (PPCC) obtained by copolymerization of propylene oxide, cyclohexene oxide, and carbon dioxide; terpolymer obtained by copolymerization of propylene oxide, 1-10C alkyl glycidyl ether, and carbon dioxide; and terpolymer obtained by copolymerization of propylene oxide, 1-20C fatty acid glycidyl ester and carbon dioxide. The aliphatic polycarbonate has a weight average molecular weight of 50000-300000 g/mole, and contains less than or equal to 1% of ether linkage.m=2-10;n=1-3;R=H, (1-4C)alkyl, or -CH2-O-R';R'=(1-8C)alkyl;x=5-100;y=0-100;M'=trivalent cobalt or trivalent chromium;A'=O or S;Q'=diradical linking two nitrogen atoms, preferably selected from (6-30C)arylene, (1-20C)alkylene, (2-20C)alkenylene, (2-20C)alkynylene, or (3-20C)cycloalkylene;R1 and R2=T1;T1=H; halo; (1-20C)alkyl; (1-20C)alkyl (containing halo, N, O, Si, S or P); (2-20C)alkenyl; (2-20C)alkenyl (containing halo, N, O, Si, S or P); (1-20C)alkyl(6-20C)aryl; (1-20C)alkyl(6-20C)aryl (containing halo, N, O, Si, S or P); (6-20C)aryl(1-20C)alkyl; (6-20C)aryl(1-20C)alkyl (containing halo, N, O, Si, S or P); (1-20C)alkoxy; (6-30C)aryloxy; formyl; (1-20C)alkylcarbonyl; (6-20C)arylcarbonyl; or a metalloid radical of Group XIV metal substituted with hydrocarbyl;R3-R10=T1, or protonated group selected from group of formulae -Z+(R11)(R13)-R12 (ia), -P(R21)(R22)=N+=P(R23)(R25)-R24 and (iiia);ortwo of R1-R10=ring;Z'=N or P;R11-R13, and R21-R25=(1-20C)alkyl; (1-20C)alkyl (containing halo, N, O, Si, S or P); (2-20C)alkenyl; (2-20C)alkenyl (containing halo, N, O, Si, S or P); (1-20C)alkyl(6-20C)aryl; (1-20C)alkyl(6-20C)aryl (containing halo, N, O, Si, S or P); (6-20C)aryl(1-20C)alkyl; (6-20C)aryl(1-20C)alkyl (containing halo, N, O, Si, S or P); or metalloid radical of Group XIV metal substituted with hydrocarbyl;ortwo of R11-R13, and two of R21-R25=ring;R31-R33=H; (1-20C)alkyl; (1-20C)alkyl containing halo, N, O, Si, S or P; (2-20C)alkenyl; (2-20C)alkenyl (containing halo, N, O, Si, S or P); (1-20C)alkyl(6-20C)aryl; (1-20C)alkyl(6-20C)aryl (containing halo, N, O, Si, S or P); (6-20C)aryl(1-20C)alkyl; (6-20C)aryl(1-20C)alkyl (containing halo, N, O, Si, S or P); or a metalloid radical of Group XIV metal substituted with hydrocarbyl;ortwo of R31-R33=ring;X'=O, S, or N-R;R=(1-20C)alkyl);a=value obtained by adding 1 to the number of protonated groups included in R3-R10;b= greater than or equal to 1;orb+c=value of a.Provided that at least one of R3-R10 is protonated group selected from group of formulae (ia)-(iiia). EXAMPLE - No suitable example given.