Claims
- 1. A process for enhancing the incorporation of diallyldimethylammonium chloride into an acrylamide polymer, said process comprising forming a polymerizable mixture in an aqueous system of diallyldimethylammonium chloride and acrylamide in the presence of emulsifiers, introducing into the polymerizable mixture a polymerizable promoter monomer having a higher reactivity with acrylamide than diallyldimethylammonium chloride, and polymerizing said promoter containing polymerizable mixture, said polymerizable promoter monomer being present in an amount sufficient to provide improved incorporation of diallyldimethylammonium chloride into the acrylamide polymer and being ##STR4## wherein R is --H or CH.sub.3 ;
- X is --O--, or --NH--;
- n has a value of 2-4; and
- A is an ion selected from the group consisting of Cl.sup.-, CH.sub.3 SO.sub.4.sup.- HSO.sub.4.sup.- and NO.sub.3.sup.-.
- 2. The process of claim 1 wherein said promoter monomer comprises 2-methacryloylmethyltrimethylammonium chloride.
- 3. The process of claim 1, wherein said promoter monomer comprises 2-acryloylethyltrimethylammonium chloride.
- 4. The process of claim 1, wherein the polymerization is carried out at a temperature in the range of about 35.degree.-55.degree. C.
- 5. The process of claim 4, wherein said temperature is in the range of about 40.degree.-45.degree. C.
- 6. The process of claim 1, wherein the polymerization is effected in an emulsion.
- 7. The process of claim 6, wherein emulsifiers employed in the system are a mixture of sorbitan monooleate and ethoxylated 12-hydroxystearic acid, and a mixture of sorbitan trioleate and ethoxylated 12-hydroxystearic acid.
Parent Case Info
This application is a continuation-in-part application of Ser. No. 687,700 filed on Dec. 31, 1984 now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
3284393 |
Vanderhoff |
Nov 1966 |
|
3767629 |
Vallino, Jr. |
Oct 1973 |
|
4396752 |
Cabestany et al. |
Aug 1983 |
|
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
687700 |
Dec 1984 |
|