New injectable, in situ crosslinkable biodegradable polymer composites comprise poly(propylene fumarate) (PPF), poly(ethylene glycol)-dimethacrylate (PEG-DMA), an, optionally, .beta.-tricalcium phosphate (.beta.-TCP). A method for controlling the crosslinking characteristics of the composites, including the maximum crosslinking temperature and the gel point, as well as the properties of the cross linked composites such as the compressive strength and modulus and the water holding capacity, is disclosed.

Injectable novos, em compostos biodegradable crosslinkable do polímero do situ compreendem o fumarate) do poly(propylene (PPF), o glycol)-dimethacrylate do poly(ethylene (PEG-DMA), opcionalmente, o phosphate beta.-beta.-tricalcium (beta.-TCP). Um método para controlar as características crosslinking dos compostos, including a temperatura crosslinking máxima e o ponto do gel, assim como as propriedades dos compostos ligados transversais tais como a força compressive e o modulus e a água que prende a capacidade, é divulgado.