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Shape memory polymers of polyurethane series have been developed. These polymers have the following features. (1) They can be molded easily similar to conventional plastics, (2) their shape recovery temperature can be set arbitrarily, and (3) they can be colored as required because they are transparent, making a wide range of applications possible. In this paper, the basic characteristics of the stress-strain-temperature-time relationship of shape memory polymers of the polyurethane series are investigated experimentally, and several applications of these polymers are introduced.
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TOBUSHI et al. (1996) studied this question.
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