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Preparation of Paracyanogen Like Films

IP.com Disclosure Number: IPCOM000086166D
Original Publication Date: 1976-Jul-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Cuomo, JJ: AUTHOR [+2]

Abstract

Polymer film formation from monomers has been known to occur by several techniques. These include radio-frequency discharge, electron-beam polymerization, glow discharge techniques, and ultraviolet irradiation. Paracyanogen (the polymeric form of cyanogen C(2)N(2)) has been prepared by ultraviolet irradiation.

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Preparation of Paracyanogen Like Films

Polymer film formation from monomers has been known to occur by several techniques. These include radio-frequency discharge, electron-beam polymerization, glow discharge techniques, and ultraviolet irradiation. Paracyanogen (the polymeric form of cyanogen C(2)N(2)) has been prepared by ultraviolet irradiation.

Formation of paracyanogen-like films has been achieved by the direct interaction of the elements. This is accomplished by radio-frequency sputtering carbon in nitrogen. The material has been deposited on the following substrates: quartz, silicon, metals, sapphire and mica: at temperatures from room temperature to about 450 degrees C. With substrates above about 450 degrees C, no film accumulation is found at the substrate site, but deposition occurs outside the intense plasma zone. It can be looked at as a reaction zone for the paracyanogen formation, and the deposition zone now becomes all surfaces in the system other than the reactive area.

The best known conventional method is based on the polymerization of C(2)N(2) gas under ultraviolet radiation. The sputter process described herein yields a deposition rate of 10 times greater than the ultraviolet polymerization of C(2)N(2). Depending on the conditions of preparation, films ranging from insulators to relatively good conductors may be produced.

Regardless of the substrate temperature, the composition of these films correspond to the general formula (CN)(x). The fac...