Block-graft copolymer
First Claim
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1. A block-graft copolymer comprising:
- a polymer block having a repeating unit represented by General Formula (I);
##STR13## wherein R1 represents a hydrogen atom, methyl group or ethyl group;
R2 and R3 may be the same or different and each represent an alkyl group having 1 to 3 carbon atoms or phenyl group;
m represents an integer of 0 to 4; and
A represents any one of polymer residual groups represented by General Formulas (II) to (IV) shown below, ##STR14## wherein R4 may be the same or different and each represent methyl group, ethyl group or phenyl group;
R5 is as defined for R4 or represents a group represented by the formula --Si(R4)3 ; and
n is an integer of 1 to 1,000, ##STR15## wherein R6 represents a hydrogen atom or methyl group; and
B represents a group represented by the formula --COOR2, where R2 is as defined above, ##STR16## --CH═
CH2 or --C(CH3)═
CH2 ;
Y represents cumyl group, n-butyl group, s-butyl group or benzophenone residual group; and
n is as defined above, ##STR17## wherein Y represents cumyl group, n-butyl group or s-butyl group, and n is as defined above,and at least one of polymer blocks having a repeating unit represented by General Formula (V);
##STR18## wherein R7 represents a hydrogen atom, methyl group or ethyl group;
M represents at least one selected from a group represented by the formula --CH═
CH2, --C(CH3)═
CH2, --COOCH3 or --COOC2 H5 and phenyl group.
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Abstract
Disclosed are a block-graft copolymer comprising a polymer block having a repeating unit represented by General Formula (I): ##STR1## wherein A is a side chain and represents an organopolisiloxane chain, a polyacrylate chain, a polymethacrylate chain, polydiene chain, etc.
and a process for producing the same. This block-graft copolymer can have various performances such as oxygen enrichment performance, biocompatibility, depending on the kind of side chains.
343 Citations
4 Claims
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1. A block-graft copolymer comprising:
- a polymer block having a repeating unit represented by General Formula (I);
##STR13## wherein R1 represents a hydrogen atom, methyl group or ethyl group;
R2 and R3 may be the same or different and each represent an alkyl group having 1 to 3 carbon atoms or phenyl group;
m represents an integer of 0 to 4; and
A represents any one of polymer residual groups represented by General Formulas (II) to (IV) shown below, ##STR14## wherein R4 may be the same or different and each represent methyl group, ethyl group or phenyl group;
R5 is as defined for R4 or represents a group represented by the formula --Si(R4)3 ; and
n is an integer of 1 to 1,000, ##STR15## wherein R6 represents a hydrogen atom or methyl group; and
B represents a group represented by the formula --COOR2, where R2 is as defined above, ##STR16## --CH═
CH2 or --C(CH3)═
CH2 ;
Y represents cumyl group, n-butyl group, s-butyl group or benzophenone residual group; and
n is as defined above, ##STR17## wherein Y represents cumyl group, n-butyl group or s-butyl group, and n is as defined above,and at least one of polymer blocks having a repeating unit represented by General Formula (V);
##STR18## wherein R7 represents a hydrogen atom, methyl group or ethyl group;
M represents at least one selected from a group represented by the formula --CH═
CH2, --C(CH3)═
CH2, --COOCH3 or --COOC2 H5 and phenyl group. - View Dependent Claims (2, 3, 4)
- a polymer block having a repeating unit represented by General Formula (I);
Specification