Silylated vinyl alcohol polymers

Polymer consisting essentially of the polymer of the formula

• R.sub.H (Y.sup.2 --CH(OSi[R.sup.1 ].sub.3)CH.sub.2 --.sub.n CH(OSi[R.sup.1 ].sub.3 Q.sup.2 R.sub.p).sub.x
• wherein:
• R.sub.H is H or a hydrocarbyl radical of valence x which is alkyl, cycloalkyl, aryl, alkaryl or aralkyl, containing up to 20 carbon atoms, or a polymeric radical containing at least 20 carbon atoms, and which, optionally, contains ether oxygen and/or one or more functional substituents which are unreactive under its preparative polymerizing conditions;
• x is an integer and is at least 1;
• n is an integer and is at least 5;
• Y.sup.2 is Y.sup.3 (C[R.sup.4 ].sub.2).sub.y ;
• Y.sup.3 is selected from a connecting bond and a divalent radical selected from ##STR20## wherein R.sup.2 is C.sub.1-10 alkylene or C.sub.7-20 aralkylene, R.sup.3 is C.sub.1-4 alkyl, L.sup.1 is --OR.sup.5, --OR.sup.6 OSi[R.sup.1 ].sub.3 or --OSi[R.sup.1 ].sub.3, wherein R.sup.5 is C.sub.1-4 alkyl and R.sup.6 is C.sub.1-4 alkylene, L.sup.2 is --OSi[R.sup.1 ].sup.3, L.sup.3 is --(CH.sub.2).sub.b --C(O)OSi[R.sup.1 ].sub.3, L.sup.4 is --C(O)OSi[R.sup.1 ].sub.3, and each of a and b, indepedently, is 0, 1 or 2;
• y is 0 or 1;
• each R.sup.4 is independently selected from H, C.sub.1-10 alkyl and C.sub.6-10 aryl, aralkyl and alkaryl;
• Q.sup.2 is a keto or cyano group-containing divalent radical selected from ##STR21## and mixtures thereof;
• R.sub.p is H, C.sub.1-4 alkyl, or a methacrylic and/or acrylic polymer radical;
• X is --CN, --CH.dbd.CHC(O)X' or --C(O)X';
• Y is --H, --CH.sub.3, --CN or --CO.sub.2 R, provided, however, when X is CH.dbd.CHC(O)X', Y is --H or --CH.sub.3 ;
• X' is --OSI(R.sup.1).sub.3, --R, --OR or --NR'R";
• each R.sup.1 is independently selected from C.sub.1-10 alkyl, alkenyl having 2 or 4-10 carbon atoms, and C.sub.6-10 aryl, alkaryl and aralkyl;
• R is C.sub.1-20 alkyl, alkenyl or alkadienyl;
• C.sub.6-20 cycloalkyl aryl, alkaryl or aralkyl;
• any of said groups optionally containing one or more ether oxygen atoms within aliphatic segments thereof;
• and any of all the aforesaid groups optionally containing one or more functional substituents that are unreactive under its preparative polymerizing conditions;
• and
• each of R' and R" is independently selected from C.sub.1-4 alkyl.

Polymer consisting essentially of the polymer of the formula R.sub.H (Y.sup.2 --CH(OSi[R.sup.1 ].sub.3)CH.sub.2 --.sub.n X.sup.3).sub.x

• wherein:
• R.sub.H is H or a hydrocarbyl radical of valence x which is alkyl, cycloalkyl, aryl, alkaryl or aralkyl, containing up to 20 carbon atoms, or a polymeric radical containing at least 20 carbon atoms, and which, optionally, contains ether oxygen and/or one or more functional substituents which are unreactive under its preparative polymerizing conditions;
• x is an integer and is at least 1;
• n is an integer and is at least 5;
• Y.sup.2 is Y.sup.3 (C[R.sup.4 ].sub.2).sub.y ;
• Y.sup.3 is a connecting bond or a divalent radical selected from ##STR22## wherein R.sup.2 is C.sub.1-10 alkylene or C.sub.7-20 aralkylene, R.sup.3 is C.sub.1-4 alkyl, L.sup.1 is --OR.sup.5, --OR.sup.6 OSi[R.sup.1 ].sub.3 or --OSi[R.sup.1 ].sub.3, wherein R.sup.5 is C.sub.1-4 alkyl and R.sup.6 is C.sub.1-4 alkylene, L.sup.2 is --OSi[R.sup.1 ].sub.3, L.sup.3 is --(CH.sub.2).sub.b --C(O)OSi[R.sup.1 ].sub.3, L.sup.4 is --C(O)OSi[R.sup.1 ].sub.3, each of a and b, independently is 0, 1 or 2;
• y is 0 or 1;
• each R.sup.1 is independently selected from C.sub.1-10 alkyl, alkenyl having 2 or 4-10 carbon atoms, and C.sub.6-10 aryl, alkaryl and aralkyl;
• each R.sup.4 is independently selected from H, C.sub.1-10 alkyl and C.sub.6-10 aryl, aralkyl and alkaryl;
• and
• X.sup.3 is --CH.sub.2 OH, --CO.sub.2 M or --Q.sup.3 R.sub.p.sup.1 wherein R.sub.p.sup.1 is defined as for R.sub.H and Q.sup.3 is a di- or trivalent radical selected from ##STR23## wherein M is H, an alkali metal or ammonium and G is the halometal portion of a Grignard reagent.

Process of polymerizing an ethenyloxysilane monomer, or mixture of such monomers, of the formula CH.sub.2 .dbd.CHOSi(R.sup.1).sub.3, by contacting the monomer or mixture of monomers under polymerizing conditions with (i) an initiator which is an aldehyde of the formula R.sub.H (Y.sup.2 CHO).sub.x or a precursor compound thereof of the formula R.sub.H (Y.sup.1 X.sup.1).sub.x and (ii) a catalyst which is a suitable Lewis acid or a source of bifluoride ion, wherein, in the formulas:

• R.sub.H is H or a hydrocarbyl radical or valence x which is alkyl, cycloalkyl, aryl, alkaryl or aralkyl, containing up to 20 carbon atoms, or a polymeric radical containing at least 20 carbon atoms, and which, optionally, contains ether oxygen and/or one or more functional substituents which are unreactive under its preparative polymerizing conditions;
• Y.sup.2 is Y.sup.3 (C[R.sup.4 ].sub.2).sub.y ;
• Y.sup.3 is a connecting bond or a divalent radical selected from ##STR27## wherein R.sup.2 is C.sub.1-10 alkylene or C.sub.7-20 aralkylene, R.sup.3 is C.sub.1-4 alkyl, L.sup.1 is --OR.sup.5, --OR.sup.6 OSi[R.sup.1 ].sub.3 or --OSi[R.sup.1 ].sub.3, wherein R.sup.5 is C.sub.1-4 alkyl and R.sup.6 is C.sub.1-4 alkylene, L.sup.2 is --OSi[R.sup.1 ].sub.3, L.sup.3 is --(CH.sub.2).sub.b --C(O)OSi[R.sup.1 ].sub.3, L.sup.4 is --C(O)OSi[R.sup.1 ].sub.3, and each of a and b, independently, is 0, 1 or 2;
• Y.sup.1 is a connecting bond or a divalent radical selected from
• --C(O)--, --R.sup.2 --, --CH[OSi(R.sup.1).sub.3 ]--, --CH(OR.sup.5)-- and --N.sup..sym. (R.sup.3).dbd.CH.sub.2,
• wherein
• R.sup.1 is as defined below, R.sup.2 is C.sub.1-10 alkylene or C.sub.7-20 aralkylene, R.sup.3 is C.sub.1-4 alkyl, and R.sup.5 is C.sub.1-4 alkyl;
• X.sup.1 is --OH, --Cl, --Br, --H, --R.sup.5, --OR.sup.5, Cl.sup..crclbar., Br.sup..crclbar., I.sup..crclbar., O.sup..crclbar. R.sup.5, O.sup..crclbar. COR.sup.5, or CH.sub.3 C.sub.6 H.sub.4 SO.sub.3.sup..crclbar., wherein R.sup.5 is C.sub.1-4 alkyl;
• Y.sup.1 and X.sup.1 taken together is ##STR28## wherein R.sup.6 is C.sub.1-4 alkylene, R.sup.8 is a a connecting bond or C.sub.1-10 alkylene, and R.sup.7 is C.sub.1-10 alkyl or C.sub.6-10 aryl, or R.sup.8 and R.sup.7 taken together is ##STR29## wherein each of a and b taken independently is 0, 1 or 2;
• with the provisos that:
• (i) when Y.sup.1 is a connecting bond, X.sup.1 is --OH;
• (ii) when Y.sup.1 is --C(O)--, X.sup.1 is --Cl, --Br, --H, or --R.sup.5 ;
• (iii) when Y.sup.1 is --R.sup.2 --, X.sup.1 is --Cl or --Br;
• and
• (iv) when Y.sup.1 is --N.sup..sym. (R.sup.3).dbd.CH.sub.2, X.sup.1 is O.sup..crclbar. R.sup.5, O.sup..crclbar. COR.sup.5, Cl.sup..crclbar., Br.sup..crclbar., I.sup..crclbar., or CH.sub.3 C.sub.6 H.sub.4 SO.sub.3.sup..crclbar. ;
• each R.sup.1 is independently selected from C.sub.1-10 alkyl, alkenyl having 2 or 4-10 carbon atoms, and C.sub.6-10 aryl, alkaryl and aralkyl;
• each R.sup.4 is independently selected from H, C.sub.1-10 alkyl and C.sub.6-10 aryl, aralkyl and alkaryl;
• x is an integer and is at least 1;
• and
• y is 0 or 1.