Abstract: The thesis is primarily based on dichlorotelechelic polybutadiene-1,2 prepared first by using naphthalenelithium as initiator, extracted naphtha as solvent, butadiene as monomer, trichloroazine as terminator. Then acetic acid or alcohol or sodium hydroxide was used to hydrolyze dichloro telechelic polybutadiene-1,2 to obtain thecorresponding end product--telechelic cyanuric acid terminated polybutadiene-1,2.The latter was studied in detail by ultraviolet, infrared spectrum and acid-base potential titration. Not only the molecular structure of said prepolymer was testified but also the phenomenon of alcohol-ketone (lactam-lactim) tautomerism present in polymer solution was discovered as well. They were measured quantitatively, too.