摘要:
A process for depositing metals onto electrically conductive, polymeric carriers, wherein a finely divided metal M having a standard potential E.sub.o of >-2 V is deposited, from a solution of a metal cation compound of the formula (I) ##EQU1## where M', L.sup.1, L.sup.2, L.sup.3, L.sup.4, l, m, n, o, and p are as defined in the claims, in an aprotic polar or non-polar solvent, onto a polymeric, electrically conductive carrier of the formula (II) ##EQU2## where M" is Li, Na, K, Rb or Cs,P is P=--CH--, --C.sub.6 H.sub.4 --, --C.sub.4 H.sub.2 S--, --C.sub.6 H.sub.4 S--, --C.sub.4 H.sub.2 O--, --C.sub.4 H.sub.2 NH-- --C.sub.6 H.sub.4 O-- or --C.sub.5 H.sub.3 N--y is from 0.001 to 0.6 andx is from 5 to 1,000, or onto a polymeric, electrically conductive carrier of the formula (III)[(P)(X).sub.y ].sub.x (III)whereP is one of the groups listed for formula (II), X is ClO.sub.4.sup..crclbar., AsF.sub.6.sup..crclbar., PF.sub.6.sup..crclbar., SbF.sub.6.sup..crclbar., BF.sub.4.sup..crclbar., HSO.sub.4.sup..crclbar., CF.sub.3 SO.sub.3.sup..crclbar. or Br.sup..crclbar.,y is from 0.001 to 0.6 andx is from 5 to 1,000, by reduction, preferably at from -100.degree. to +100.degree. C. The electrically conductive, polymeric systems can be employed in the electrical industry for the production of solar cells, for converting and fixing radiation, and for the production of electric and magnetic switches and electrical storage devices, and can also be used as heterogeneous catalysts and to provide an antistatic finish on plastics.
摘要:
Photosensitive recording materials which are suitable for the production of printing plates and relief plates and possess a photopolymerizable relief-forming layer which can be developed with water and is based on a polyvinylalcohol/monomer mixture contain, as a binder in the said layer, a polyvinylalcohol derivative which is obtained by reacting polyvinylalcohol with an acylating agent which has groups which are polymerizable by free radicals, the reaction being carried out in the heterogeneous phase, in an aprotic dispersant, using the acylating agent in an amount which corresponds to not less than twice the molar amount required to achieve the desired degree of acylation.
摘要:
Polymers which comprise polyene units possessing 5 or more conjugated aliphatic C-C double bonds and contain 1,9-disubstituted phenalenes as chemically bonded side groups are prepared by a process in which acetylene derivatives carrying 1,9-disubstituted phenalene groups are polymerized. The polymers obtained are used in the electrical industry or as reversible redox systems or for the antistatic treatment of plastics.
摘要:
A process for the preparation of electrically conductive products which are stable to air and have conductivities greater than 1 .times.10.sup.-3 S/cm, by reacting a cation of a metal of group VII or VIII or of sub-group I of the periodic table with an organic chelating compound to give a metal chelate and oxidizing the latter to form a oxidized product, wherein the organic chelating compound is a 1,9-substituted phenalene of the formula I ##STR1## where X is O, NH, S, Se or Te and Y is OH, NH.sub.2 or SH. The electrically conductive products are useful for the production of solar cells, the conversion and fixing of radiation, the production of electrical and magnetic switches and the antistatic treatment of plastics.
摘要:
A process for the preparation of an electrically conductive polyene, wherein a polyene which contains one or more chain members of the formula where R is hydrogen or methyl, and which contains a total of not less than seven aliphatic double bonds, is treated, in the absence of moisture and of oxygen, with a strong Lewis acid having a pk.sub.a of from -10 to +4, or with an alkali metal.
摘要:
Graft copolymers comprising a crosslinked, saturated, elastomeric grafting base and a hard shell are prepared by incorporating thermolabile comonomers, as copolymerized units, into the grafting base during the preparation of the latter, in particular at a conversion of from 50 to 90%. During the subsequent grafting of the shell, the conditions used are such that the thermolabile comonomers incorporated as copolymerized units into the grafting base decompose into free radicals. This gives graft copolymers having improved mechanical properties, which copolymers also prove advantageous for the preparation of mixtures with other thermoplastics compatible with the graft copolymers.
摘要:
A process for the manufacture of reactive polymers of vinyl monomers by reacting the latter, or the polymers formed therefrom, with compounds which form free radicals.The latter compounds are tetrakis-(organylthio)-methanes, 1,1,2,2-tetrakis-(organylthio)-ethanes or hexakis-(organylthio)-ethanes.The polymers obtained can readily be modified, e.g. by oxidation or quaternisation.
摘要:
Copolymers which have a molecular weight of from 600 to 24,500, and which contain from 0.1 to 60 per cent by weight of succinic acid hydrazide units and from 99.9 to 40% by weight of one or more ethylenically unsaturated monomers which are copolymerizable with maleic anhydride, are used as coating agents and binders.
摘要:
Polymers containing units of the general formula: ##EQU1## in which X denotes --CH.sub.2 --, --CH.sub.2 --CH.sub.2 --, ##SPC1##or divalent C.sub.3.sup.+10 cycloalkyl,n denotes 0 or 1 andR denotes H, C.sub.1.sup.+10 alkyl or aryl.These polymers are used in the manufacture of crosslinkable coatings and for finishing papers and textiles.