The need of intelligent implant materials for applications in the area of minimally invasive surgery leads to tremendous attention for polymers which combine degradability and shape-memory capability. Application of heat, and thereby exceeding a certain switching temperature T
sw, causes the device to changes its shape. The precise control of T
sw is particularly challenging. It was investigated in how far T
g, that can be used as T
sw, of amorphous polymer networks from star-shaped polyester macrotetrols crosslinked with a low-weight linker can be controlled systematically by incorporation of different comonomers into poly(rac-lactide) prepolymers. The molecular mass of the prepolymers as well as type and content of the comonomers was varied. The T
g could be adjusted by selection of comonomer type and ratio without affecting the advantageous elastic properties of the polymer networks.