Reference

Reactivity effect of active additives on the formation process of poly(ethylene terephthalate)

Reactivity effect of active additives on the formation process of poly(ethylene terephthalate). Shevchenko, V. V. (Vses. Nauchno-Issled. Inst. Sint. Volokon, Kalinin, USSR). Prepr. - Mezhdunar. Simp. Khim. Voloknam, 2nd, Volume 1, 201-13. Program. Kom. Mezhdunar. Simp. Khim. Voloknam: Kalinin, USSR. (Russian) 1977. CODEN: 37KQAK. DOCUMENT TYPE: Conference CA Section: 35 (Synthetic High Polymers) The accelerating effect of bifunctional additives (terephthalic acid [100-21-0], di-Ph terephthalate [1539-04-4], and dinaphthyl terephthalate [58201-08-4]) on the rate of formation of poly(ethylene terephthalate) (I) [25038-59-9] was caused by the interaction of the additives (more reactive than the b-hydroxyethyl carboxylate groups) with b-hydroxyethyl carboxylate end groups of I. The latter interaction was studied on model compds. (ethylene glycol [107-21-1], benzoic acid [65-85-0], ethylene glycol monobenzoate [94-33-7], Ph benzoate [93-99-2], and b-naphthyl benzoate [93-44-7]). E.g., it was concluded that the rate consts. in the reactions of b-hydroxyethyl carboxylate end groups of I with aryl carboxylate groups of the accelerators were 11-13 times higher and the rate consts. in esterification of b-hydroxyethyl carboxylate end groups of I by the carboxylic groups of the accelerators were 4 times higher than the rate consts. of transesterification of the b-hydroxyethyl carboxylates.

Plant growth stimulator

Plant growth stimulator. Yukin, N. A.; Tsupikov, M. T. (Novocherkassk Institute of Melioration Engineering, USSR). U.S.S.R. SU 564844 15 Jul 1977 From: Otkrytiya, Izobret., Prom. Obraztsy, Tovarnye Znaki 1977, 54(26), 4. (Russian). (Union of Soviet Socialist Republics). CODEN: URXXAF. CLASS: IC: A01N005-00. APPLICATION: SU 76-2333860 3 Mar 1976. DOCUMENT TYPE: Patent CA Section: 5 (Agrochemicals) .beta.-Naphthyl benzoate (I) [93-44-7] is a plant growth stimulator.