聚苯乙炔衍生物的纳米力学性质

doi:10.7503/cjcu20180261

高等学校化学学报 ›› 2018, Vol. 39 ›› Issue (11): 2565.doi: 10.7503/cjcu20180261

聚苯乙炔衍生物的纳米力学性质

李逊¹, 王晓², 姚睿翔¹, 孙景志², 张文科¹()

1. 吉林大学超分子结构与材料国家重点实验室, 长春 130012
2. 高分子合成与功能构造教育部重点实验室, 浙江大学高分子科学与工程学系, 杭州 310027

收稿日期:2018-04-04 出版日期:2018-11-10 发布日期:2018-09-10
作者简介:联系人简介: 张文科, 男, 博士, 教授, 博士生导师, 主要从事高分子纳米力学相关方面的研究. E-mail: zhangwk@jlu.edu.cn
基金资助:
国家自然科学基金(批准号: 21525418, 21474041)资助.

Nanomechanics of Polyphenylacetylene Derivatives by AFM-based SMFS^†

LI Xun¹, WANG Xiao², YAO Ruixiang¹, SUN Jingzhi², ZHANG Wenke^1,^*()

1. State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
2. Ministry of Education(MOE) Key Laboratory of Macromolecular Synthesis and Functionalization,Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China

Received:2018-04-04 Online:2018-11-10 Published:2018-09-10
Contact: ZHANG Wenke E-mail:zhangwk@jlu.edu.cn
Supported by:
† Supported by the National Natural Science Foundation of China(Nos. 21525418, 21474041).

摘要/Abstract

摘要：

基于原子力显微镜技术的单分子力谱方法及圆二色谱法, 从单分子水平定量研究了侧链带有酰胺键的聚苯乙炔衍生物所形成的螺旋结构稳定性及影响因素. 单分子力谱实验结果表明, 向体系中掺杂碘单质后, 高分子主链螺旋结构稳定性下降, 力谱拉伸曲线平台力值降低; 升高溶液pH值后, 高分子主链螺旋结构完整性下降, 力谱拉伸曲线平台长度缩短.

关键词: 聚苯乙炔, 单分子力谱, 碘掺杂, pH响应

Abstract:

We quantitatively investigated the effect of iodine and pH on the stability of the helical structure formed by polyphenylacetylene derivatives using atomic force microscopy(AFM) based single-molecule force spectroscopy(SMFS) and circular dichroism(CD). The AFM measurement results showed that the addition of iodine into the system caused the decrease of the plateau heights in the stretching curves recorded during the SMFS experiments. In addition, the pH value increase can weaken the intra-polymer hydrogen bond and interrupt the integrity of the helical structure. However, the CD result did not show any detectable changes upon the addition of iodine and the change of pH value, which indicate that SMFS is a very sensitive and powerful method for subtle structure study.

Key words: Polyphenylacetylene, Single-molecule force spectroscopy(SMFS), Iodine doping, pH response

中图分类号:

O631

TrendMD:

李逊, 王晓, 姚睿翔, 孙景志, 张文科. 聚苯乙炔衍生物的纳米力学性质. 高等学校化学学报, 2018, 39(11): 2565.

LI Xun, WANG Xiao, YAO Ruixiang, SUN Jingzhi, ZHANG Wenke. Nanomechanics of Polyphenylacetylene Derivatives by AFM-based SMFS^†. Chem. J. Chinese Universities, 2018, 39(11): 2565.

图/表 10

Scheme 1 Cleaning and modification processes of Si3N4 AFM tip and Si substrate in SMFS experiments

Scheme 2 Molecular structure of polymers P1—P3

Fig.1 Comparison on normalized representative curves of P1 obtained at different doping ratios of iodine(A) and histograms of the plateau heights with different concentrations of iodine(B—F)

Fig.2 CD spectra of P1 with different doping ratios of iodine

Fig.3 Representative force curves of P2 in the presence of different doping ratios of iodine(A) and histograms of the plateau heights with iodine(B—F)

Fig.4 Comparison of the heights and length of plateaus of P1 along with the addition of KOH in DMF(A) Representative stretching curves of P1; (B) enlarged view of the plateau part in (A); (C) histograms of the plateau heights(forces) with KOH 0, KOH 15 and KOH 150; (D) histograms of plateau length with KOH 0, KOH 15 and KOH 150.

Table 1 Comparison of the plateau heights(force) and length of P1 and P3 along with the addition of KOH in DMF

Solvent	P1		P3
Solvent	Force/pN	Normalized length^b	Force/pN	Normalized length
DMF	58±14	0.28	50±5	0.16
DMF/MeOH/KOH 15^a	50±7	0.26	50±4	0.23
DMF/MeOH/KOH 150	50±8	0.15	49±4	0.07

Fig.5 CD spectra of P1 with different concentrations of KOH

Fig.6 Comparison of the heights and length of plateaus of P3 along with the addition of KOH in DMF(A) Representative stretching curves of P3; (B) enlarged view of the plateau part in (A); (C) histograms of the plateau heights(forces) with KOH 0, KOH 15 and KOH 150; (D) histograms of plateau length with KOH 0, KOH 15 and KOH 150.

Scheme 3 Schematic of the partial breakage of the helical structure of polymers by the increase of pH value

参考文献 35

[1]	Snook G. A., Kao P., Best A. S., J. Power Sources, 2011, 196(1), 1—12
[2]	Guimard N. K., Gomez N., Schmidt C. E., Prog. Polym. Sci., 2007, 32(8/9), 876—921
[3]	Gurunathan K., Murugan A. V., Marimuthu R., Mulik U. P., Amalnerkar D. P., Mater. Chem. Phys., 1999, 61(3), 173—191
[4]	Potphode D. D., Mishra S. P., Sivaraman P., Patri M., Electrochim. Acta, 2017, 230, 29—38
[5]	Chiang C. K., Fincher J. C. R., Park Y. W., Heeger A. J., Shirakawa H., Louis E. J., Gau S. C., MacDiarmid A. G., Phys. Rev. Lett., 1977, 39(17), 1098—1101
[6]	Robin P., Pouget J. P., Comès R., Gibson H. W., Epstein A. J., Phys. Rev. B, 1983, 27(6), 3938—3941
[7]	Lam J. W. Y., Tang B. Z., Acc. Chem. Res., 2005, 38(52), 745—754
[8]	Yashima E., Maeda K., Macromolecules, 2008, 41(1), 3—12
[9]	Shimomura K., Ikai T., Kanoh S., Yashima E., Maeda K., Nat. Chem., 2014, 6, 429—434
[10]	Li S., Liu K., Kuang G., Masuda T., Zhang A., Macromolecules, 2014, 47(10), 3288—3296
[11]	Park Y. W., Heeger A. J., J. Chem. Phys., 1980, 73(2), 946—957
[12]	Shirakawa H., Louis E. J., Macdiarmid A. G., Chiang C. K., Heeger A. J., J. Chem. Soc. Chem. Commun., 1977, 474, 578—580
[13]	Zhang W., Kou X., Zhang W., Chem. J. Chinese Universities, 2012, 33(5), 861—875
	(张薇, 寇晓龙, 张文科. 高等学校化学学报, 2012, 33(5), 861—875)
[14]	Rief M., Clausen-Schaumann H., Gaub H. E., Nat. Struct. Biol., 1999, 6(4), 346—349
[15]	Giannotti M. I., Vancso G. J., Chem. Phys. Chem., 2007, 8(16), 2290—2307
[16]	Grandbois M., Beyer M., Rief M., Clausen-Schaumann H., Gaub H. E., Science, 1999, 283(5408), 1727—1730
[17]	Huang W., Zhu Z., Wen J., Wang X., Qin M., Cao Y., Ma H., Wang W., ACS Nano, 2017, 11(1), 194—203
[18]	Luo Z., Zhang A., Chen Y., Shen Z., Cui S., Macromolecules, 2016, 49(9), 3559—3565
[19]	Lü X., Song Y., Zhang W., Chem. J. Chinese Universities, 2018, 39(1), 166—171
	(吕秀娟, 宋宇, 张文科. 高等学校化学学报, 2018, 39(1), 166—171)
[20]	Rief M., Gautel M., Oesterhelt F., Fernandez J. M., Gaub H. E., Science, 1997, 276(5315), 1109—1112
[21]	Yu H., Siewny M. G. W., Edwards D. T., Sanders A. W., Perkins T. T., Science, 2017, 355(6328), 945—950
[22]	Liu K., Song Y., Feng W., Liu N., Zhang W., Zhang X., J. Am. Chem. Soc., 2011, 133(10), 3226—3229
[23]	Li H., Linke W. A., Oberhauser A. F., Carrion-Vazquez M., Kerkvliet J. G., Lu H., Marszalek P. E., Fernandez J. M., Nature, 2002, 418(6901), 998—1002
[24]	Cao Y., Li H., Biophys. J., 2011, 101(8), 2009—2017
[25]	Embrechts A., Schonherr H., Vancso G. J., J. Phys. Chem. B, 2008, 112(50), 7359—7362
[26]	Zou S., Schonherr H., Vancso G. J., Angew. Chem. Int. Ed., 2005, 44(6), 956—959
[27]	Zou S., Schonherr H., Vancso G. J., J. Am. Chem. Soc., 2005, 127(32), 11230—11231
[28]	Zhao W., Cai M., Xu H., Jiang J., Wang H., Nanoscale, 2013, 5(8), 3226—3229
[29]	Hao X., Zhu N., Gschneidtner T., Jonsson E. O., Zhang J., Moth-Poulsen K., Wang H., Thygesen K. S., Jacobsen K. W., Ulstrup J., Chi Q., Nat. Commun., 2013, 4, 2121
[30]	Zhou S., Yang B., Chen Y., Zhang Q., Cai M., Xu H., Yang G., Wang H., Shan Y., RSC Adv., 2018, 8(16), 8626—8630
[31]	Wu D., Lenhardt J. M., Black A. L., Akhremitchev B. B., Craig S. L., J. Am. Chem. Soc., 2010, 132(45), 15936—15938
[32]	Zhang H., Li X., Lin Y., Gao F., Tang Z., Su P., Zhang W., Xu Y., Weng W., Boulatov R., Nat. Commun., 2017, 8, 1147
[33]	Xue Y., Li X., Li H., Zhang W., Nat. Commun., 2014, 5, 4348
[34]	Banno M., Yamaguchi T., Nagai K., Kaiser C., Hecht S., Yashima E., J. Am. Chem. Soc., 2012, 134(20), 8718—8728
[35]	Liu N., Peng B., Lin Y., Su Z., Niu Z., Wang Q., Zhang W., Li H., Shen J., J. Am. Chem. Soc., 2010, 132(32), 11036—11038

聚苯乙炔衍生物的纳米力学性质

Nanomechanics of Polyphenylacetylene Derivatives by AFM-based SMFS^†

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聚苯乙炔衍生物的纳米力学性质

Nanomechanics of Polyphenylacetylene Derivatives by AFM-based SMFS†

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Nanomechanics of Polyphenylacetylene Derivatives by AFM-based SMFS^†