Shape memory polymers with silicon-containing segments.
Shape memory polymers with silicon-containing segments.
复制标题
具有含硅链段的形状记忆聚合物。
DOI：
10.1039/b924032b
复制
发表时间：
2010
影响因子：
--
通讯作者：
Grunlan,MelissaAnn
中科院分区：
文献类型：
--
作者：
Schoener,CodyAlan;Weyand,ChristopherBell;Murthy,Ranjini;Grunlan,MelissaAnn
温敏形状记忆聚合物是一种形状受热调控的刺激响应材料。它们已被研究作为智能材料在各种生物医学，工业和航空航天应用。绝大多数形状记忆聚合物仅限于由有机聚合物制备的那些。在本工作中，形状记忆聚合物由无机含硅聚合物链段（聚二甲基硅氧烷，PDMS）和有机聚（ε-己内酯）（PCL）链段组成。由于其低Tg，PDMS充当高效的软段。具有定制PCL链段长度的双丙烯酸酯化的PCLn-嵌段-PDMS 37-嵌段-PCLn大分子单体的光化学固化产生具有优异的机械性能、形状固定性和形状恢复的网络。
Thermoresponsive shape memory polymers are stimuli-responsive materials whose shape is modulated by heat. They have been investigated as smart materials in a variety of biomedical, industrial and aerospace applications. The vast majority of shape memory polymers have been limited to those prepared from organic polymers. In this present work, shape memory polymers comprised of inorganic silicon-containing polymer segments (polydimethylsiloxane, PDMS) and organic poly(ε-caprolactone) (PCL) segments were developed. Because of its low Tg, PDMS served as a highly effective soft segment. The photochemical cure of diacrylated PCLn-block-PDMS37-block-PCLn macromers with tailored PCL segment lengths produced networks with excellent mechanical properties, shape fixity, and shape recovery.