UV-triggered shape-controllable PP fabric†,Polymer Chemistry

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UV-triggered shape-controllable PP fabric†
Polymer Chemistry ( IF 4.1 ) Pub Date : 2018-05-14 00:00:00 , DOI: 10.1039/c8py00411k
Jiaojiao Shang _{1,

2,

3,

4} , Shaojian Lin _{1,

2,

3,

4} , Patrick Theato _{1,

2,

3,

4,

5}

Affiliation

A light-driven polypropylene (PP) fabric as an actuator was fabricated in which a light-responsive polymeric film acts as an active layer and a PP fabric acts as a passive layer. For this, poly[di(ethylene glycol)methyl ether methacrylate-co-pentafluorophenyl acrylate] P(DEGMA-co-PFPA) containing reactive pentafluorophenyl esters was synthesized as a precursor polymer. Owing to the highly reactive esters on P(DEGMA-co-PFPA), photoactive azobenzene moieties were introduced onto the polymer backbone via a post-modification polymerization strategy to form a light-responsive polymer, poly[di(ethylene glycol)methyl ether methacrylate-co-4-(4-methoxy-phenylazo) acrylate] (P(DEGMA-co-MOPAzo)). Interestingly, this copolymer can be attached in a simple and stable manner to the surface of a PP fabric via physical adsorption to build a light-responsive PP fabric. On account of its light responsiveness, this functional polymer PP fabric can immediately respond to a UV stimulus and show a reversible shape transition upon alternating exposure to UV irradiation and the addition of heat.

中文翻译：

紫外线触发形状可控的PP织物†

制备了作为致动器的光驱动聚丙烯（PP）织物，其中光敏聚合物膜充当主动层，而PP织物充当被动层。为此，合成了含有反应性五氟苯基酯的聚[二（乙二醇）甲基醚甲基丙烯酸酯-共-五氟苯基丙烯酸酯] P（DEGMA-共-PFPA）作为前体聚合物。由于P（DEGMA- co -PFPA）上的高反应性酯，通过后改性聚合策略将光活性偶氮苯部分引入到聚合物主链上，以形成光响应性聚合物聚[二（乙二醇）甲基醚甲基丙烯酸酯-共-4-（4-甲氧基-苯基偶氮基）丙烯酸酯]（P（DEGMA-共-MOPAzo））。有趣的是，该共聚物可以通过物理吸附以简单而稳定的方式连接到PP织物的表面上，从而形成光响应性PP织物。由于其光响应性，这种功能性聚合物PP织物可以立即响应UV刺激，并在交替暴露于UV辐射和加热后显示出可逆的形状转变。

更新日期：2018-05-14

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