Disclosed are hydrogels polymerized with or around a solid biofunctional moiety, biodegradable or permanent, designed to be implantable in a mammalian body, intended to block or mitigate the formation of tissue adhesions, and intended to aid in functional healing. The hydrogels of the present invention comprise multiphasic structural elements: a) at least one gel phase, b) at least one solid phase, c) optional polymeric chains connecting gel and solid phases, d) optional shape designs that provide for an interpenetrating geometry between gels and solids, e) optional shape designs that enhance a tissue-hydrogel interface, and f) optional shape designs that provide a biofunctional aspect. The hydrophobicity of the various phases is chosen to reduce tissue adhesion and enhance tissue healing. The gel phase polymer morphology is typically of high molecular weight and has morphology that encourages entanglement. Useful polymeric structures include branching chains, comb or brush, and dendritic morphologies.