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·614· 精细化工 FINE CHEMICALS 第 36 卷

快，重新排布，导致聚二炔酸主链上的 C—C 键转 链的共轭长度变长，构象可逆转变，材料颜色再变
动，主链转变成一种混乱松弛的构象且共轭长度变 为蓝色 [39] ，实现 PDA/α-FeOOH 纳米复合材料的热
短，复合材料颜色变为红色，吸收光谱中最大吸收 致可逆变色行为。α-FeOOH 表面的—OH 与二乙炔
+
峰蓝移。加热停止后，温度下降，高温时已被破坏 分子端基的—COOH 之间的氢键作用和—OH 2 与二
-
的 α-FeOOH 表面的—OH 与聚二炔酸分子中—COOH 乙炔分子 端基的— COO 之间的 静电作用 是
+
–
之间的氢键作用、—OH 2 与—COO 之间的静电作用 PDA/α-FeOOH 纳米复合材料热致可逆变色的关键
恢复，使得侧链转动恢复至原来有序排布，进而主 作用。

图 10 PDA 和 α-FeOOH 纳米粒子的表面相互作用
Fig. 10 Surface interaction of PDA and α-FeOOH nanoparticles

3 结论 (PDA) film:A unique sensing element[J]. Material Today: Proceedings,
2018, 5(1): 2367-2372.
[4] Park I, Park H, Kim J. Low-temperature thermochromic and
α-FeOOH 与聚 10,12-二十五碳二炔酸之间的氢 chemically reactive polydiacetylene[J]. ACS Applied Materials &
键作用与静电作用，实现 PDA/α-FeOOH 复合材料 Interfaces, 2013, 5(17): 8805-8812.
的热致可逆变色行为。复合材料中 α-FeOOH 含量、 [5] Chen X, Yoon J. A thermally reversible temperature sensor based on
polydiacetylene: Synthesis and thermochromicproperties[J]. Dyes
光照聚合时间对 PDA/α-FeOOH 材料热致变色均有 Pigments, 2011, 89(3): 194-198.
影响，光照 15 min 制备的 PDA/α-FeOOH 复合材料 [6] Charoenthai N, Pattanatornchai T, Wacharasindhu S, et al. Roles of
head group architecture and side chain length on colorimetric
加热后蓝色转变为红色最快。相同光照时间下，聚
response of polydiacetylene vesicles to temperature, ethanol and pH[J].
合物单体与 α-FeOOH 质量比为 3∶1 时，60 ℃转变 Journal of Colloid and Interface Science, 2011, 360(2): 565-573.
为红色，加热-冷却循环过程中 PDA/α-FeOOH 复合 [7] Ahn D, Chae E, Lee G, et al. Colorimetric reversibility of polydiacetylene
supramolecules having enhanced hydrogen-bonding under thermal
材料能够较稳定地响应外界环境刺激的变化且具有 and pH stimuli[J]. Journal of America Chemistry Society, 2003,
可逆性。与 PDA 自身的化学改性相比，该复合材料 125(30): 8976-8977.
[8] Pattanatornchai T, Charoenthai N, Wacharasindhu S, et al. Control
制备简单，可通过 α-FeOOH 改变热致可逆变色的温
over the color transition behavior of polydiacetylene vesicles using
度区间，为聚二炔酸/无机复合材料类温度传感器的 different alcohols[J]. Journal of Colloid and Interface Science, 2013,
实际应用提供理论基础。 391(1): 45-53.
[9] Shin M, Byun D, Kim J. Sensitivity limitation of the sensor fabricated
参考文献： with polydiacetylene[J]. Journal of Industrial and Engineering Chemistry,
2015, 23(1): 279-284.
[1] He P, Zhou H, Zou G. Polymerization kinetics of 10, 12-pentacosadiynoic [10] Zhou G, Wang F, Wang H, et al. Colorimetric and fluorometric assays
acid monolayer and possible acceleration effect of visible light[J]. based on conjugated polydiacetylenesupramolecules for screening
Polymer, 2003, 44(11): 3235-3241. acetylcholinesterase and its inhibitors[J]. ACS Applied Materials &
[2] Kim J, Lee J, Choi H, et al. Rational design and in-situ FTIR analyses Interfaces, 2013, 5(8): 3275-3280.
of colorimetrically reversible polydiacetylenesupramolecules[J]. [11] Fan Yu (范翊), Zhang Ligong (张立功), Hou Fangyu (侯芳玉), et al.
Macromolecules, 2005, 38(22): 9366-9376. Studies on recognition and dynamic analysis of polydiacetylene
[3] Chakarborty S, Suklabaidya S, Bhattacharjee D, et al. Polydiacetylene Langmuir-schaefer films functionalized with glycolipid[J]. Chemical