Grafting of amine functional polymers onto functionalized oxymethylene polymers and the resulting graft polymers thereof
AssigneeHoechst Celanese Corporation
InventorsAndrew B. Auerbach, Jerry A. Broussard, Nan L. Yang, James L. Paul
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Abstract
Novel oxymethylene graft polymers are obtained by grafting, via Michael addition, an amine functional polymer onto an oxymethylene backbone having pendant acrylate or substituted acrylate ester groups serving as reactive sites for the graft reaction.
Claims12
An oxymethylene graft polymer comprising (i) a polyoxymethylene backbone having pendant acrylate or substituted acrylate ester functional groups, and (ii) an amine functional polymer grafted onto said polyoxymethylene backbone via said acrylate or substituted acrylate ester functional groups, and wherein said polyoxymethylene backbone is selected from oxymethylene copolymers having recurring units represented by the following Formulas I, II and III:
- ##STR7## where R is alkyl;
- X is H or alkyl;
- Y and Z, which may be the same or different are H, alkyl, or aryl;
- q is an integer between 1 and 4;
- and m, n and p are each integers such that m+n or m+n+p is between 5 and 20,000 and the ratio of units of subscript m to the units of subscript n or units of subscript n+p is between 1:1 and 1000:1.
A method of making an oxymethylene graft polymer comprising grafting an amine functional polymer onto pendant acrylate or substituted acrylate ester functional reactive sites of a polyoxymethylene backbone which is selected from oxymethylene copolymers having recurring units represented by the following Formulas I, II and III:
- ##STR13## where R is alkyl;
- X is H or alkyl;
- Y and Z, which may be the same or different are H, alkyl, or aryl;
- q is an integer between 1 and 4;
- and m, n and p are each integers such that m+n or m+n+p is between 5 and 20,000 and the ratio of units of subscript m to the units of subscript n or units of subscript n+p is between 1:1 and 1000:1.
Dependencies are inferred from the claim text.