| 摘要 |
A cross-linkable polymer formed from monomer includinga) a hydroxyl-group containing monomer of the formula Iin which R<26 >is hydrogen or a C1-4-alkyl group;A<1 >is -O- or -NR<27>- where R<27 >is hydrogen or a C1-4-alkyl group or a group B<9>R-(OH)n;B<9 >is a bond, a straight or branched alkylene, oxa alkylene or oligooxa alkylene group;R<13 >is a n+1 functional C1-24 alkylene group which may be substituted, andn is an integer of one or more;b) a reactive monomer of the formula (II)in which R<19 >is hydrogen or a C1-4-alkyl group;A<2 >is -O- or -NR<21>- where R<21 >is hydrogen, or a C1-4-alkyl groupR<12 >is a C1-24 straight or branched alkylene, oxaalkylene or oligo oxaalkylene group in which each alkylene group has 1 to 6 carbon atoms;A<3 >is a bond or -O-; andeach R<16 >is independently selected from C1-6-alkyl groups. Preferably the polymer includes a zwitterionic monomer and is useful for providing stable biocompatible coatings on substrates.
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