Abstract: The present invention describes a polyoxaamide copolymer and blends thereof that may be used to produce hydrogels, surgical devices such as catheters, molded devices, and the like. The polyoxaamide copolymers of the present invention are composed of a first divalent repeating unit of formula IA:[--X'--C(O)--R.sub.30 --C(O)--] IAa second divalent repeating unit of the formula IB:[X--C(O)--C(R.sub.1)(R.sub.2)--O--R.sub.3 --O--C(R.sub.1)(R.sub.2)--C(O)--]IBand a third repeating unit selected from the group of formulas consisting of:[--Y--R.sub.17 --].sub.T II[--O--R.sub.5 --C(O)--].sub.B, III([--O--R.sub.9 --C(O)].sub.P --O--).sub.L G XIand combinations thereof, wherein R.sub.30 is an alkylene, arylene, arylalkylene, substituted alkylene, substituted arylene and substituted alkylarylene provided that R.sub.30 cannot be --[C(R.sub.1)(R.sub.2)].sub.1--2 --O--R.sub.3 --O--[C(R'.sub.1)(R'.sub.2)].sub.