content_image/936157.jpg content_image/936156.jpg
wherein L 2 is a single bond or a divalent linking group; each R 7 is independently chosen from H, C 1 _ 10 -alkyl, C 2 _ 20 - alkenyl, C 5 _ 20 -aryl, and C 6 _ 20 -aralkyl; each ofR 8 and R 9 are independently chosen from H, C 1 _ 4 -alkyl, C 1 _ 4 -haloalkyl, halogen, C 5 _ 20 -aryl, C 6 _ 20 -aralkyl, and CN; R 10 is chosen from H, C 1 _ 10 -alkyl, C 1 _ 10 -haloalkyl, halogen, C 5 _ 20 -aryl, C6_2 0 -aralkyl, and C(=O)R 11 ; R$^{11 }$is chosen from OR 12 and N(R 13 ) 2 ; R 12 is chosen from H, C 1 _ 20 alkyl, C 5 _ 20 -aryl, and C 6 _ 20 -aralkyl; each R 13 is independently chosen from H, C 1 _ 2 -alkyl, and C 5 _ 20 -aryl; each Y 1 is independently chosen from halogen, C 1 _ 10 -alkoxy, C 5 _ 10 -aryloxy, and C 1 _ 10 -car› boxy; and b is an integer from O to 2. It is preferred that L 2 is a divalent linking group, and more preferably a divalent linking group comprising one or more heteroatoms chosen from oxygen and silicon. A suitable divalent linking group for L 2 is an organic radical having from 1 to 20 carbon atoms and optionally one or more heteroatoms. Preferred divalent linking groups have the formula ----C(=O)---0-L 3 - wherein L 3 is a single bond or an organic radical having from 1 to 20 carbon atoms. It is preferred that L 3 is an organic radical having from 2 to 10 carbon atoms. Preferably, each R 7 is independently chosen from C 1 _ 10 -alkyl, C 2 _ 20 -alkenyl, Cs-2 0 -aryl, and C 6 _ 20 -aralkyl. It is preferred that each Y 1 is independently chosen from halogen, C 1 _calkoxy, C 5 _ 10 - aryloxy, and C 1 _ 6 -carboxy, and more preferably from halo› gen, C 1 _calkoxy, and C 1 _ccarboxy. Preferably, bis O or 1, and more preferably b=O. It is preferred that each R 8 and R 9 are independently chosen from H, C 1 _ 4 -alkyl, C 1 _ 4 -ha› loalkyl, C 5 _ 20 -aryl, and C 6 _ 20 -aralkyl, and more preferably from H, C 1 _ 4 -alkyl, C 5 _ 20 -aryl, and C 6 _ 20 -aralkyl. Yet more preferably, each R 8 and R 9 are independently chosen from H, methyl, $^{ethyl}$1lropyl, butyl, phenyl, naphthyl, benzyl, and phenethyl. R is preferably chosen from H, C 1 _ 10 -alkyl, C1_ 10 -haloalkyl, C 5 _ 20 -aryl, C 6 _ 20 -aralkyl, and C(=O)R 11 , and more preferably from H, C 1 _ 10 -alkyl, C 5 _ 20 -aryl, C 6 _ 20 - aralkyl, and C(=O)R 11 . It is preferred that R$^{11 }$is OR 12 . R 12 is preferably chosen from H, C 1 _ 10 -alkyl, C 5 _ 10 -aryl, and C 6 _ 15 -aralkyl. Preferably, each R 13 is independently chosen from H, cl-10-alkyl, and c6-20-aryl. 

[0020] Suitable second unsaturated monomers having a condensable silicon-containing moiety are generally com› mercially available from a variety of sources, such as Sigma-Aldrich (St. Louis, Mo.), or may be prepared by methods known in the art. Such monomers may be used as-is, or may be further purified. Exemplary second unsatu› rated monomers include, but are not limited to: ally! dime› thoxysilane; ally! dichlorosilane; (trimethoxysilyl)methyl ( meth)acrylate; ( trimethoxysily l)ethy I (meth )acrylate; ( trimethoxysily l)propy I (meth )acrylate; ( trimethoxysily I) bu› tyl (meth)acrylate; (triethoxysilyl)methyl (meth)acrylate; ( triethoxysily l)ethy I (meth )a cry late; ( triethoxysily l)propy I ( meth)acrylate; ( triethoxysily I )buty I (meth )acrylate; (trichlorosilyl)methyl (meth)acrylate; (trichlorosilyl)ethyl (meth)acrylate; (trichlorosilyl)propyl (meth)acrylate; (trichlorosilysilyl)butyl (meth)acrylate; (methyldimethox› ysilyl)propyl (meth)acrylate; vinyltriacetoxysilane; (triac› etoxysilyl)propyl (meth)acrylate; 4-((trimethoxysilyl)pro› pyl)styrene; 4-(trimethoxysilyl)styrene; and vinyltrimethoxysilane. 

[0021] The condensed polymers of the invention may further comprise one or more third unsaturated monomers, where such third monomers are free of an acidic moiety having an acidic proton and having a pKa in water of -5 to 13, and free of a condensable silicon-containing moiety. 

Preferably, the condensed polymers further comprise as polymerized units one or more third unsaturated monomers of formula ( 4) 

<img src='content_image/936157.jpg'>

wherein Z is chosen from unsubstituted C 5 _ 30 -aryl moiety, substituted C 5 _ 30 -aryl moiety, CN, and-C(=O)R 17 ; R 14 is chosen from H, C 1 _ 10 -alkyl, C 1 _ 10 -haloalkyl, halogen, and ----C( =0 )R 18 ; each of R 15 and R 16 are independently chosen from H, C 1 _ 4 -alkyl, C 1 _ 4 -haloalkyl, halogen, and CN; each of R 17 and R 18 is independently chosen from OR 19 and N(R 20 ) 2 ; R 19 is chosen from H, C 1 _ 20 -alkyl, C 5 _ 30 -aryl, C 6 _ 20 - aralkyl and a monovalent organic residue having a lactone moiety; and each R 20 is independently chosen from H, C1-20-alkyl, and C 6 _ 20 -aryl; wherein Zand R 14 may be taken together to form a 5 to 7-membered unsaturated ring. When Z is an unsubstituted C 5 _ 30 -aryl moiety or a substituted C 5 _ 30 -aryl moiety, it is preferred that such aryl moieties are aromatic carbocycles. When Z is a substituted C 5 _ 30 -aryl moiety, such aryl moiety has one or more of its hydrogens replaced with one or more substituents chosen from halogen, C1_calkyl, C 1 _chaloalkyl, C 1 _calkoxy, C 1 _chaloalkoxy, phenyl, and phenoxy, preferably from halogen, C 1 _ 6 -alkyl, C 1 _calkoxy, phenyl, and phenoxy, and more preferably from halogen, C 1 _ 6 -alkyl, and phenyl. Preferably, such substituted C 5 _ 30 -aryl has from 1 to 3 substituents, and more preferably 1 or 2 substituents. 

[0022] Exemplary ethylenically third unsaturated mono› mers include, without limitation: vinyl aromatic monomers such as styrene, a-methylstyrene, ~-methylstyrene, stilbene, vinylnaphthylene, acenaphthalene, and vinylpyridine; eth› ylenically unsaturated anhydride monomers such as maleic anhydride, citraconic anhydride and itaconic anhydride, ethylenically unsaturated carboxylic acid esters such as crotonic acid esters, itaconic acid esters, and (meth)acrylate esters; (meth)acrylonitrile; (meth)acrylamides; and the like. Suitable (meth)acrylate ester monomers useful as the unsaturated third monomers include, but are not limited to, C 6 _ 20 -aryl (meth)acrylates, C 1 _ 10 -hydroxyalkyl (meth)acry› lates, glycidyl (meth)acrylate, and C 1 _ 10 -alkyl (meth)acry› lates. Exemplary (meth)acrylate ester monomers include, without limitation, benzyl acrylate, benzyl methacrylate, hydroxyethyl acrylate, hydroxyethyl methacrylate, hydroxy› propyl acrylate, hydroxypropyl methacrylate, glycidyl meth› acrylate, methyl acrylate, methyl methacrylate, phenyl methacrylate, naphthyl methacrylate, and anthracenyl meth› acrylate. 

[0023] Preferred third unsaturated monomers are those of formula (5) 

<img src='content_image/936156.jpg'>

(4) 

(5) 

