Abstract
Polymeric deposits showing an electron spin resonance absorption were made by passing an electrical discharge through vapors of relatively simple organic compounds. Very high spin concentrations (1020/g) were obtained in films formed using naphthalene (C10H8) and anthracene (C14H10) vapors. Paramagnetic spin centers were also found in films deposited from vapors of decalin (C10H18) and of secondary butyl alcohol (C4H10O) but with much lower concentration. The free radial structures are either formed in the discharge itself and then trapped in the deposit or created by bombardment of the film after deposition, and seem to be predominantly of an aromatic nature. By studying the heat treatment dependence of the spin resonance in the temperature range 0–1000°C it is shown that they are distinct from those formed when such films are charred at temperature above 400°C.
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