Conductive hydrogel containing 3-ionene

• US 4,036,808 A
• Filed: 12/26/1973
• Issued: 07/19/1977
• Est. Priority Date: 08/14/1972
• Status: Expired due to Term

• Current Assignee: California Institute of Technology
• Original Assignee: California Institute of Technology
• Inventors: Rembaum, Alan, Yen, Shiao-Ping Siao
• Primary Examiner(s): Briggs, Sr., Wilbert J.
• Application Number:
  US05/427,917
• Time in Patent Office: 1,301 Days
• Field of Search: 260/2 R, 260/874, 260/42.51
• US Class Current: 524/445
• CPC Class Codes: B01J 31/0239 Quaternary ammonium compounds
• CPC Class Codes: B01J 31/08 Ion-exchange resins
• CPC Class Codes: B01J 37/0009 Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
• CPC Class Codes: C02F 1/54 using organic material
• CPC Class Codes: C08F 8/00 Chemical modification by after-treatment graft polymers, block polymers, crosslinking with unsaturated monomers or with polymers C08F251/00 - C08F299/00; of conjugated diene rubbers C08C
• CPC Class Codes: C08G 73/0226 Quaternisation of polyalkylene(poly)amines
• CPC Class Codes: C08G 81/00 Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers involving only carbon-to-carbon unsaturated bond reactions C08F299/00 ; polyester-amides C08G69/44; polyester-imides C08G73/16; polyamides-imides C08G73/14; block- or graft polymers containing polysiloxane sequences C08G77/42

Abstract

Cationic polyelectrolytes formed by the polymerization in absence of oxygen of a monomer of the general formula: dispersed ##STR1## where x is 3 or more than 6 and Z is I, Br or Cl to form high charge density linear polymers are dispered in a water-soluble polymer such as polyvinyl alcohol to form a conductive hydrogel.

Claims

1. A conductive composition consisting essentially of a dispersion of 20 to 95 percent by weight of a water-soluble gel forming binder polymer selected from polyvinyl alcohol or polyvinyl alcohol cross-linked to a water-insoluble and water-swellable form by reaction with a coreactive water-soluble polymer and a linear, water-soluble polyelectrolyte of the formula:

##STR16## where Z is chloro, bromo or iodo and n is an integer such that the intrinsic viscosity, n, as determined by light scattering in 0.4 KBr is at least 0.2 dl/g as determined by the formula;

space="preserve" listing-type="equation">n= (2.94 ×

10 .sup..sup.-4) M.sup.0.61

where M is molecular weight.

2. A composition according to claim 1 in which the water soluble binder polymer comprises polyvinyl alcohol.

3. A composition according to claim 1 in which the polyelectrolyte is present in an amount from 10-30 weight precent of the composition.

4. A composition according to claim 3 further including up to 50 weight percent of an inert filler.

5. A composition according to claim 4 in which the filler is a reprographic paper grade of clay.

6. A composition according to claim 1 in which Z is chloro.

7. A conductive composition according to claim 1 in which the coreactive polymers are polyvinyl alcohol and polyacrylic acid.