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The process of gel formation in the reaction of polycyclotrimerization of 2,2‐bis(4‐cyanatophenyl) propane has been studied as a function of the nature of solvent, monomer concentration, kind and concentration of catalyst, temperature of the process, and the way in which the reaction is conducted. The gel point and the dependence of the gel yield on the degree of the system conversion vary with the conditions of the process conduction and the solvent used. It was found also that the type of the catalyst affects the parameters indicated above only in certain solvents. A change in the monomer concentration has been found to affect differently the gel point of the system, depending on the nature of the solvent. The experimental data obtained have been compared with the results of the theory of gel formation developed for the process of polycyclotrimerization by Fukui and Yamabe. The dependence of the process kinetics on the type and concentration of catalysts has been investigated. No marked influence of temperature on the regularities of gel formation has been disclosed.

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A series of novel bis(naphtha1ic anhydrides) has been prepared through acenaphthene interaction with the dichloroanhydrides of dicarboxylic acids under the conditions of the Friedel-Crafts reaction or with chloral and bromal followed by oxidation of bis-acenaphthyls and anhydrization of the tetracarboxylic acids synthesized. Poly(naphthoy1ene benzoimidazoles) combining advantageous thermal properties and solubility in organic solvents have been obtained through interaction between the synthesized anhydrides and bis (0-phenylene diamines). Neue Bis(naphtha1incarbonaureanhydride) und Polyheteroarylene auf deren BasisEine Reihe neuer Bis(naphtha1incarbonsaureanhydride) wurden durch Umsatz von Acenaphthen mit Dichloranhydriden von Dicarhonsauren unter den Bedingungen einer Friedel-Crafts-Reaktion mit Chloral bzw. Bromal und nachfolgender Oxidation der Bis(acenaphthy1e) und Anhydridisierung der Tetracarbonsauren synthetisiert. Aus diesen Anhydriden und Bis(o-phenylendiaminen) erhaltene Poly(naphthoy1en-benzoimidazole) vereinen gute thermische Eigenschaften mit Loslichkeit in organischen Losungsmitteln. H o s w 6 u c ( n~m m s b t e anzuapuau) u nonuzemepoapmenu na ux ocnoeeA H H~~~O H O B~I X KIICJIOT B ~CJIOBIIFLX peaKqm @pnAens-ICpa@Tca IIJIH c xnopaneM II 6 p o~a~1 e~ c nocneRyIorqm PSA HOBbIX 6IIC(HaI$TaJIeBbIX PHFMAPIIAOB) IIOJIy' IeH IIyTeM B3El HMOAefi CTBEl Fl aqeHa@TeHa C AHXJIOpaHrIIQIIAaMII OKEICJl eHEfeM 6IIC-aqeHaI$TIIJIOB II aH~HAPliAH3aqIIefi CIIHTe3HPOBaHHbIX TeTpaKap6OHOBbIX HIICJIOT. B3aHMOAefiCTBHeM IIOJIyW!HHbIX aHrIIAPHAOB C 6HC(O-@eHHJIeHAHaMIIHaMII) CIIHTe3IIpOBaHbI IIOnIIHaI$TOElJIeH6eH3IIMII~a3OJI~, CO'Ie-TaIoWtre m c o w e TepMmecme xapaKTepHcTHKH c pacTBopsmocTbm B opraHmecmx pacmopmensx.

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