Semiconducting copolymer samples were prepared by bulk copolymerization of methyl methacrylate with lithium acrylate using benzoyl peroxide as initiator. The pattern of the chemical reaction is discussed. The obtained samples wcre found to he random copolymers. Infrared absorption spectra were measured and analysed according to the copolymer structures. The data of electrical conductivity and the effect of gamma radiation on the electrical conductivity of the copolynier samples are discussed. Infrarotspeklren und elektrische Leitfiihigkeit von Methylmethacrylat-Lithiumacrylat-CopolymerenDurch Substanzcopolymerisation von Methylmethacrylat und Lithiuniacrylat rnit Benzoylperoxid wurden halbleitende Copolymere synthetisiert. Ein Schema der chemischen Rcaktionen wird vorgeschlagen. Die erhaltenen Proben sind statistische Copolymere. Die Infrarotspektren wurden gemessen und im Hinblick auf die Struktur der Copolymere nnalysiert. Die gemessenen n'erte der elektrischen Leitfahigkeit urid der EinfluB von Gammabestrahlung auf die elektrische Leitfahigkeit der Copolymere werden diskutiert. MET-cneEmpba u anexmpuuec~ca~ npoeoaumoma conoawepoe AtemuaAemaPcpunama u aPcpunama a u m uEJIOYHO~~ cononm~epnaaq~eit MeTunMeTaKpmaTa H aKpmaTa JIATHJT, A H H q A A p o s a H H o i n e p e K H c b H ) 6 e~a o~n a , nony-Ctem noaynposonRqne cononmepbr. HpennaraeTcR cxeMa xtmwiecmx peaKqAir. IIonyqeHHbIe HK-cneKTpbI am-;Ilf3Y~yH)TCR OTHOCATeJIbHO CTPYKTYPbI COIIOnHMepOB. 06CYWfEAaH)TCR AaHHbIe H3MepeHHR WIeKTpHYeCHOfi IIpOBOAA-MOCTA A BJIHRHAe y-06nyqe~mfi H a EJJIeKTpWIeCKyIO IIPOBOAHMOCTb COnOJlAMepOB.

The bulk copolymerization of methyl methacrylate with copper acrylate was carried out using benzoyl peroxide as initiator at 60°C. The density and hardness of the obtained transparent solid copolymer samples were investigated. The pattern of the chemical reactions is discussed. The monomer reactivity ratios were determined. The obtained samples were found to be random copolymers. The electrical conductivity of the obtained samples increases with the increase of Cu‐acrylate content, while the activation energy as well as the glass transition temperature decrease.

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