Polymerizations, glow discharge

Poll Fl-U, Arzt M and Wickleder K-FI 1976 Reaction kinetics in the polymerization of thin films on the electrodes of a glow-discharge gap Eur. Polym. J 12 505-12... 

Photopolymerization and Plasma Polymerization. The use of ultraviolet light alone (14) as well as the use of electrically excited plasmas or glow discharges to generate monomers capable of undergoing VDP have been explored. The products of these two processes, called plasma polymers, continue to receive considerable scientific attention. Interest in these approaches is enhanced by the fact that the feedstock material from which the monomer capable of VDP is generated is often inexpensive and readily available. In spite of these widespread scientific efforts, however, commercial use of the technologies is quite limited. 

Hoffman, A. S. Ioninzing Radiation and Gas Plasma (or Glow) Discharge Treatments for Preparation of Novel Polymeric Biomaterials. Vol. 57, pp. 141 — 157. 

Adhesion or printability of polymeric surfaces, including films, is often promoted by plasma or glow discharge treatment. In particular for apolar (low surface energy) surfaces such as polyolefins this is a commonly applied procedure. As a practical industrial example, the adhesion behaviour of polypropylenes after... 

Tanaka A, Sekiguchi Y, Kuroda S. A new replica method for electron microscopic studies of a plasma polymerization film with a glow discharge. Seikagaku 1983 55 1212-1219. (in Japanese)... 

Plasma polymerization is usually carried out in a low pressure glow discharge sustained by either a dc or an ac electric field. Examples of the reactors used for this purpose are shown in Fig. 1. The simplest configuration involves a pair of circular parallel plate electrodes mounted inside a glass bell jar. The lower electrode usually serves as the substrate holder and is sometimes heated or cooled. Monomer is introduced through a feed tube and unconsumed monomer and gaseous products are withdrawn through a port in the base plate. 

Polymers prepared by glow discharge polymerization of (CH3)4-M, where M-C, Si, Ge, Sn were photoconductive in the region of 200-350 nm [320]. Good... 

Disulfur monoxide, S20, can be prepared, along with SO, by the reduction of S02 in a glow discharge or from the reaction of metal sulfides with SOCl2. In the vapour phase at low pressure it slowly decomposes to S and S02 but in condensed phases it polymerizes. Its structure is similar to that of S02 with an SSO bond angle of 1 180.39 43 The complex t(Ph2PCH2CH2PPh2)2Ir(S20)]Cl (9) has been prepared by the reaction shown in equation (l).41 The complex (9) is air stable and the IR spectrum shows only one v(S—O) at 1043 cm-1.41,44 The complex [Mo(S20)(S2CNEt2)2] has also been isolated in small yield.45... 

When alkylsilanes such as methylsilane, dimethylsilane, trimethylsilane, tetra-methylsilane, and hexamethyldisilane polymerize in a glow discharge, the stoichiometry, chemical structure, and properties of the resulting polymers generally depend on the discharge conditions (2, 8, 21, 22], Elemental compositions from XPS for plasma trimethylsilane polymers deposited under different... 

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