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第 36 卷第 4 期                             精   细   化   工                                  Vol.36, No.4
             201 9 年 4 月                             FINE CHEMICALS                                 Apr.    2019


               功能材料
                  聚二炔酸/α-FeOOH 复合材料热致可逆变色性能



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                      张亚娜 ,王俊林 ,李小妹 ,李梦佳 ,常   玥                                   1,2,3* ,查   飞
                 (1.  西北师范大学  化学化工学院,甘肃  兰州  730070;2.  生态环境相关高分子材料教育部重点实验室,
                 甘肃  兰州  730070;3.  甘肃省高分子材料重点实验室,甘肃  兰州  730070)
                 摘要:紫外光照下(=254  nm)引发自组装在 α-FeOOH 纳米粒子表面的 10,12-二十五碳二炔酸(DA)聚合,得
                 到聚 10,12-二十五碳二炔酸/α-FeOOH 纳米复合材料(PDA/α-FeOOH),利用 XRD、SEM、DLS 对该复合材料
                 的结构、形貌及粒径大小进行了表征。热致变色实验结果显示:复合材料在 30~80 ℃间呈“蓝-红”的可逆变化,
                 考察了 α-FeOOH 用量、光聚合时间对 PDA/α-FeOOH 纳米复合材料热致可逆变色的影响。结果显示:经紫外光
                 照射 10  min 聚合得到的蓝色 PDA/α-FeOOH〔m(DA)∶m(α-FeOOH)=3∶1〕复合材料加热变色最快,60 ℃完全变
                 为红色,最大吸收波长从 650 nm 蓝移至 540 nm,冷热循环实验证明 PDA/α-FeOOH 复合材料具有良好的稳定性。
                 关键词:聚 10,12-二十五碳二炔酸;α-FeOOH;复合材料;热致可逆变色;功能材料
                 中图分类号:TQ630      文献标识码:A     文章编号:1003-5214 (2019) 04-0609-07



                          Reversible Thermochromic Properties of Polydiacetylene/
                                            α-FeOOH Nanocomposites


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                    ZHANG Ya-na , WANG Jun-lin , LI Xiao-mei , LI Meng-jia , CHANG Yue  1,2,3* , ZHA Fei
                 (1. College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, Gansu, China;
                 2.  Key Laboratory of Eco-Environment-Related  Polymer Materials, Ministry  of Education,  Lanzhou  730070,  Gansu,
                 China; 3. Key Laboratory of Polymer Materials of Gansu Province, Lanzhou 730070, Gansu, China)
                 Abstract: 10,12-Pentacosadiynoic acid (DA) self-assembled on the surface of α-FeOOH nanoparticles was
                 irradiated  with  ultraviolet  light  (=254  nm)  to  obtain  polydiacetylene/α-FeOOH  (PDA/α-FeOOH)
                 nanocomposites. The structure and morphology of nanocomposites were characterized by XRD, SEM and
                 DLS. The results showed that PDA/α-FeOOH had a reversible change in color from blue to red between
                 30 ℃  and  80 ℃.  The  effects  of  irradiation  time  and α-FeOOH  dosage  on  the reversible  thermochromic
                 properties  of  PDA/α-FeOOH  nanocomposites  were  investigated.  The  results  revealed  that  bule  PDA/α-
                 FeOOH nanocomposites with a mass ratio of DA to α-FeOOH of 3∶1 irradiated by UV light for 10 min
                 was the fastest color change. When the composites were warmed at 60 ℃, its color changed from blue to
                 red, and the maximum absorption wavelength happened shift-blue from 650 nm to 540 nm. The heating and
                 cooling cycles revealed that the PDA/α-FeOOH nanocomposites demonstrated excellently thermal stability.
                 Key words: poly(10,12-pentacosadiynoic acid); α-FeOOH; composites; reversible thermochromism; functional
                 materials
                 Foundation item: National Natural Science Foundation of China (21865031)


                 聚二乙炔是主链为烯-炔基交替的一类聚合物                 [1-3] ,  色由蓝转变为红,在传感器领域有着广阔的应用前
            当它受到温度       [4-5] 、pH [6-7] 、有机溶剂 [6,8] 或生物分      景 [13-14] 。然而,研究发现纯聚二乙炔随温度升降表
            子 [9-12] 等外界刺激后,显示出特殊的光学性质,颜                       现出的颜色转换是不可逆的,影响此类温度传感器



                 收稿日期:2018-09-05;  定用日期:2018-12-24; DOI: 10.13550/j.jxhg.20180660
                 基金项目:国家自然科学基金(21865031)
                 作者简介:张亚娜(1994—),女,硕士生。联系人:常   玥(1970—),女,教授,E-mail:cy70@sina.com。
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