原子转移自由基聚合
树枝状大分子
高分子化学
共聚物
环加成
点击化学
材料科学
差示扫描量热法
偶氮苯
热重分析
甲基丙烯酸酯
自由基聚合
化学
聚合物
有机化学
复合材料
催化作用
物理
热力学
作者
Eva Blasco,Jesús del Barrio,Milagros Piñol,Luís Oriol,Cristina Berges,Carlos Sánchez‐Somolinos,R. Alcalá
出处
期刊:Polymer
[Elsevier]
日期:2012-09-01
卷期号:53 (21): 4604-4613
被引量:17
标识
DOI:10.1016/j.polymer.2012.08.022
摘要
A series of light responsive linear–dendritic BCs consisting of a liquid crystalline aliphatic polyester dendron functionalized with sixteen 4-cyanoazobenzene moieties linked to a linear block of poly(methyl methacrylate), poly(ethyl methacrylate) or poly(styrene) have been investigated. The linear block was synthesis by atom transfer radical polymerization using an alkyne terminated initiator and was coupled to dendron with an azido group at the focal point by a Huisgen's 1,3-dipolar cycloaddition. The effectiveness of the coupling reaction and purity of the block copolymers was asserted by chromatographic and spectroscopic techniques as well as their thermal behaviour was studied by thermogravimetric analysis, differential scanning calorimetry and optical microscopy. Morphology, optical properties and photoinduced response of these block copolymers have also been evaluated.
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