Phthallic acid

Polybasic. Possessing more than one acidic or base-reactive group within its structure, as in phthallic acid, CeH COOH, a dibasic acid. 

Polyester. A condensation polymer formed by the reaction between a polyhydric alcohol and a polybasic acid, as the polymeric product resulting from the reaction of glycerol and phthallic acid or anhydride. 

Fig. 7.9 (a) An overlay of spectra recorded from (benzoic acid)Cr(CO)3 in buffers ranging from pH 2.1-6.0 (corresponding to series 5 in Fig. 7.8b). (b) Log plots of the ratios of absorbances of the associated and dissociated forms against pH [Series 1 first dissociation of (o-phthallic acid)Cr(CO)j Series 2 second dissociation of (o-phthallic acid)Cr(CO)j Series 3 (methyl 4-hydroxybenzoate)Cr(CO)3]. 

Resins, types of polymers, are the thickening and hardening agents that, without pigments, serve as colorless nail protectors resembling clear furniture lacquer. These agents include nitrocellulose (collodion) and different acrylate and polyester/polyurethane copolymers. Copolymers include chemicals such as methacrylic acid, isobutyl methacrylate, toluenesulfona-mide formaldehyde resin, phthallic anhydride/trimellitic anhydride/glycol copolymer, tosylamide/formaldehyde resin, and dimethicone copolyol. 

For this reason, only di- and triallyl monomers have achieved commercial significance, and then only the esters. Since the cross-linked polymer occurring in this polymerization involves the side chains containing ester groups, they are also sometimes referred to industrially as polyesters. The di- and triallyl ester monomers are produced by the reaction of allyl alcohol with acids, acid anhydrides, or acid chlorides. Examples of monomers are diallyl phthalate (1) from phthallic anhydride, and triallyl cyanurate (II) from trichloro-5-triazine ... 

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