Silylated polycarbonate polymers, method of making, and articles

1 . A silylated dihydroxy aromatic compound of the formula (1a);

wherein G a and G b are each independently C 1-12 alkyl, —OSi(C 1-12 alkyl) 3 , C 1-12 arylalkyl, or —OSi(C 1-12 arylalkyl) 3 ; Z a and Z b are each independently a straight or branched C 2-18 alkylene, a C 8-18 arylalkylene, or a C 8-18 alkylarylene, X a is a direct bond, a heteroatom-containing group, or a C 1-18 organic group, and r and s are each independently 1 or 2.

2 . The silylated dihydroxy aromatic compound of claim 1 , wherein the silylated dihydroxy aromatic compound is a metal catalyzed hydrosilylation product of a vinyl-substituted aromatic diol of the formula (16):

wherein Y a and Y b are each independently a straight or branched C 0-16 alkylene, a C 6-16 arylalkylene, or a C 6-16 alkylarylene, X a is a C 5-16 cycloalkylene, a C 5-16 cylcloalkylidene, a C 1-5 alkylene, a C 1-5 alkylidene, a C 6-13 arylene, a C 7-12 arylalkylene, C 7-12 arylalkylidene, a C 7-12 alkylarylene, or a C 7-12 arylenealkyl, and r and s are each independently 1 or 2, and

a hydridosilane.

3 . The silylated dihydroxy aromatic compound of claim 2 , wherein the hydridosilane has the formula:

H—Si(G) 3 ,

wherein each G is independently C 1-12 alkyl, —OSi(C 1-12 alkyl) 3 , C 1-12 arylalkyl, or —OSi(C 1-12 arylalkyl) 3 .

4 . The silylated dihydroxy aromatic compound of claim 2 , wherein the vinyl-substituted aromatic diol comprises the formula (17):

where X a is a direct bond or an isopropylidene, and

the hydridosilane comprises the formula H—Si(CH 3 )(OSi(CH 3 ) 3 ) 2 .

5 . The silylated dihydroxy aromatic compound of claim 2 , wherein the metal catalyzed hydrosilylation is carried out using a platinum, palladium, or rhodium catalyst.

6 . A silylated dihydroxy aromatic compound comprising the structure of formula (6):

7 . A silylated dihydroxy aromatic compound comprising the structure of formula (7):