Polymerizable cationic visco-elastic monomer fluids

Details Polymerizable cationic visco-elastic monomer fluids Polymerizable cationic visco-elastic monomer fluids

1990-06-13

1992-03-03

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C08F26504

Patent

active

050934481

ABSTRACT:
The synthesis of a novel family of cationic monomers capable of forming viscoelastic fluids are described within. These monomers are formed primarily through the reaction of allyl halides and dimethyl alkylamines. The rheological properties of the fluids can be dramatically modified with changes in alkyl length and/or counterion structure. In addition, it is noted that these viscoelastic fluids have properties quite similar to conventional polymer solutions even though the former structures are held together through physical forces and not through chemical bonding as in the latter materials. In addition, the properties of this unique family of cationic monomers are capable of forming viscoelastic fluids in high brine solutions. Even though the counterion attached to the monomer contributes greatly to the rheological properties, addition of soluble acid, bases and salts do not destroy (through ion exchange mechanisms) the viscoelastic properties of these fluids.

REFERENCES:
patent: 4460758 (1984-07-01), Peiffer et al.
patent: 4528348 (1985-07-01), Turner et al.

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