Polycarbonate polyester
A polycarbonate polyester includes residues of following formula (1), formula (2) and formula (3): in which R 1 is C 2 -C 15 hydrocarbon group; R 2 is C 4 -C 16 hydrocarbon group; a molar ratio of the residue of the formula (2) to the residue of the formula (1) is in a range of greater than 0.05 to less than 0.8; * represents a linking bond.
1. A polycarbonate polyester, comprising residues represented by following formula (1), formula (2) and formula (3):
wherein R 1 is a C 2 -C 15 hydrocarbon group;
R 2 is a C 4 -C 16 hydrocarbon group;
a molar ratio of the residue of the formula (2) to the residue of the formula (1) is in a range of 0.1 to 0.6;
* indicates a linking bond;
wherein the residue of the formula (1) comprises:
2. The polycarbonate polyester of claim 1 , wherein the residue of the formula (1) further comprises a C 2 -C 15 aliphatic linear or branched diol residue.
3. The polycarbonate polyester of claim 2 , wherein the C 2 -C 15 aliphatic linear or branched diol residue is selected from the group consisting of:
and a combination thereof, wherein * represents the linking bond.
4. The polycarbonate polyester of claim 2 , wherein the C 2 -C 15 aliphatic linear or branched diol residue is selected from the group consisting of:
and a combination thereof, wherein * represents the linking bond.
5. The polycarbonate polyester of claim 1 , wherein R 2 is
or a combination thereof, wherein * represents the linking bond.
6. The polycarbonate polyester of claim 1 , wherein the residue of the formula (3) is present in an amount of no more than 50 mol % of the polycarbonate polyester.
7. The polycarbonate polyester of claim 1 , wherein R 1 of the formula (1) is a polycycloalkyl group.
8. The polycarbonate polyester of claim 1 , wherein R 1 of the formula (1) is a bicycloalkyl group or a tricycloalkyl group.
9. The polycarbonate polyester of claim 1 , further comprising a residue represented by following formula (4):
wherein R 3 is a C 3 -C 20 hydrocarbon group;
R 4 , R 5 and R 6 are C 1 -C 6 hydrocarbon groups; and
n 1 , n 2 , n 3 , n 4 , n 5 and n 6 are 0 or 1.
10. The polycarbonate polyester of claim 9 , wherein R 3 is a C 3 -C 20 aliphatic hydrocarbon group or a C 4 -C 20 aromatic hydrocarbon group.
11. The polycarbonate polyester of claim 9 , wherein the residue represented by the formula (4) is selected from the group consisting of:
and a combination thereof, wherein * indicates a linking bond.
12. The polycarbonate polyester of claim 1 , wherein the residue of the formula (2) is derived from a dialkyl carbonate monomer.
13. The polycarbonate polyester of claim 9 , wherein the residue of the formula (4) is present in an amount of less than or equal to 0.4 mol % of the polycarbonate polyester.
14. The polycarbonate polyester of claim 9 , wherein the residue of the formula (4) is present in an amount of 0.05 mol % to 0.2 mol % of the polycarbonate polyester.