Silylated polycarbonate polymers, method of making, and articles
View Patent ↗A polycarbonate polymer or copolymer comprising pendant 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 is 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 is disclosed.
1. A silylated dihydroxy aromatic compound of formula (1a):
wherein:
G a and G b are each independently —OSi(C 1-12 alkyl) 3 or —OSi(C 7-12 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 C1-18 organic group;
r and s are each 1.
2. A silylated dihydroxy aromatic compound of 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 C1-18 organic group;
r is 1 or 2; and
s is 2.
3. The silylated dihydroxy aromatic compound of claim 2 , wherein r is 2.
4. The silylated dihydroxy aromatic compound of claim 2 , wherein G a and G b are each independently —OSi(C 1-12 alkyl) 3 .
5. The silylated dihydroxy aromatic compound of claim 2 , wherein X a is a direct bond.
6. The silylated dihydroxy aromatic compound of claim 2 , wherein X a has the structure of formula (3):
wherein:
R c and R d are each independently hydrogen or C 1-12 alkyl.
7. The silylated dihydroxy aromatic compound of claim 2 , wherein X a is a heteroatom selected from —O—, —S— or —N(Z)—, where Z is hydrogen or C 1-12 alkyl.
8. A silylated polycarbonate polymer or copolymer comprising the reaction product of at least one 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 C1-18 organic group;
r is 1 or 2; and
s is 2.
9. The silylated polycarbonate polymer or copolymer of claim 8 , wherein r is 2 in structure of the silylated dihydroxy aromatic compound.
10. The silylated polycarbonate polymer or copolymer of claim 8 , wherein G a and G b are each independently —OSi(C 1-12 alkyl) 3 in the structure of the silylated dihydroxy aromatic compound.
11. The silylated polycarbonate polymer or copolymer of claim 8 , wherein X a has the structure of formula (3):
wherein:
R c and R d are each independently hydrogen or C 1-12 alkyl.
12. The silylated polycarbonate polymer or copolymer of claim 8 further comprises units derived from bisphenol having the formula (8):
wherein:
R a and R b each are a halogen or C 1-12 alkyl;
p and q are each independently 0 to 4.
13. A silylated polycarbonate polymer or copolymer comprising the reaction product of at least one silylated dihydroxyl aromatic compound of formula (1a):
wherein:
G a and G b are each independently —OSi(C 1-12 alkyl) 3 or —OSi(C 7-12 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 C1-18 organic group;
r and s are each 1.