Polyfunctional polymer of high stereoregularity and method for producing the same
View Patent ↗This invention provides a polyfunctional polymer having high stereoregularity, in particular, isotacticity, and provides a production process thereof. The present invention relates to a polymer having, in a molecule, a repeating unit represented by General Formula (2): wherein R 1 and R 2 are different, and each represents a hydrogen atom, an alkyl group and an aryl group; * represents an asymmetrical carbon, the polymer containing meso diad (m) and racemo diad (r) at a proportion of 60:40 to 100:0 (m:r). The invention also relates to chemical modifications and a production process of the polymer.
1. A polymer having, in a molecule, a repeating unit represented by Formula (2):
wherein R 1 and R 2 are different, and each represents a hydrogen atom, a linear or branched C1-10 alkyl group, aryl group, or heteroaryl group; and * represents an asymmetrical carbon,
the polymer containing meso diad (m) and racemo diad (r) at a proportion of 60:40 to 100:0 (m:r).
2. A process for producing the polymer according to claim 1 , comprising subjecting a monomer containing a compound represented by Formula (1) to radical polymerization,
wherein R 1 , R 2 and * are the same as above,
the compound having R-isomers and S-isomers at a ratio of: R-isomer (S-isomer):S-isomer (R-isomer)=70:30 to 100:0.
3. A process for producing a polymer having, in a molecule, a repeating unit represented by Formula (3):
wherein, Y represents a hydrogen atom or countercation,
the polymer containing meso diad (m) and racemo diad (r) at a proportion of 60:40 to 100:0 (m:r),
the process comprising subjecting a monomer containing a compound represented by Formula (1) to radical polymerization to obtain the polymer according to claim 1 ; and hydrolyzing the polymer,
wherein R 1 and R 2 are different, and each represents a hydrogen atom, a linear or branched C1-10 alkyl group, aryl group, or heteroaryl group; and * represents an asymmetrical carbon,
the compound having R-isomers and S-isomers at a ratio of: R-isomer (S-isomer):S-isomer (R-isomer)=70:30 to 100:0.
4. A process for producing a polymer having, in a molecule, a repeating unit represented by Formula (3):
wherein, Y represents a hydrogen atom or countercation,
the polymer containing meso diad (m) and racemo diad (r) at a proportion of 60:40 to 100:0 (m:r),
the process comprising hydrolyzing the polymer according to claim 1 .
5. A process for producing a polymer having, in a molecule, a repeating unit represented by Formula (4):
wherein, R 3 and R 4 are the same or different, and each represents a hydrogen atom, an alkyl group that may or may not be substituted, an aryl group that may or may not be substituted, or a heteroaryl group that may or may not be substituted; or R 3 and R 4 may be bonded to each other to form a ring together with an adjacent nitrogen (N),
the polymer containing meso diad (m) and racemo diad (r) at a proportion of 60:40 to 100:0 (m:r),
the process comprising reacting the polymer according to claim 1 with a compound represented by Formula (5):
HNR 3 R 4 (5)
wherein R 3 and R 4 are the same as above.
6. A process for producing a polymer having, in a molecule, a repeating unit represented by Formula (6):
wherein R 1 and R 2 are different, and each represents a hydrogen atom, a linear or branched C1-10 alkyl group, aryl group, or heteroaryl group; R 5 represents an alkyl group that may or may not be substituted, an aryl group that may or may not be substituted, or a heteroaryl group that may or may not be substituted, and Y represents a hydrogen atom or countercation,
the polymer containing meso diad (m) and racemo diad (r) at a proportion of 60:40 to 100:0 (m:r),
the process comprising reacting the polymer according to claim 1 with a compound represented by Formula (7):
R 5 -M (7)
wherein M represents a metal atom, and R 5 is the same as above.
7. A process for producing a polymer having, in a molecule, a repeating unit represented by Formula (8):
wherein R 1 and R 2 are different, and each represents a hydrogen atom, a linear or branched C1-10 alkyl group, aryl group, or heteroaryl group; * represents an asymmetrical carbon,
the polymer containing meso diad (m) and racemo diad (r) at a proportion of 60:40 to 100:0 (m:r),
the process comprising reducing the polymer according to claim 1 by contacting with a reduction reagent.