942 Macromolecules, Vol. 43, No. 2, 2010
Zhou et al.
unsaturated polyester and a mixture of two methacrylates. For
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Unsaturated polyesters can be synthesized by ring-opening
polymerization of lactones. For the first time R-methylene-γ-
butyrolactone was copolymerized via ring-opening. These un-
saturated polyesters can be cross-linked with methacrylates by
radical reactions. The obtained material is transparent and elastic
and shows shape memory effect. The elasticity and the glass
transition temperature of the material can be controlled in a range
of -26 up to 29 °C.
ꢀ
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Acknowledgment. We thank Oliver Goerz for supporting us
in the synthesis of various substances.
Supporting Information Available: Experimental details.
This material is available free of charge via the Internet at
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