含偶氮苯生色团的聚合物纳米微球的制备与表征

高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (10): 2067.

含偶氮苯生色团的聚合物纳米微球的制备与表征

林坤华1, 沙静1, 赵永超1, 刘明2, 江波1, 肖德泉3, 殷勤俭1

1. 四川大学化学学院,
2. 分析测试中心, 成都 610064;
3. 耶鲁大学化学系, 纽黑文 CT 06522

收稿日期:2010-01-12 出版日期:2010-10-10 发布日期:2010-10-10
通讯作者: 殷勤俭. E-mail: changer@scu.edu.cn; 肖德泉. E-mail: dequan.xiao@yale.edu

Synthesis and Characterization of Azobenzene Chromophore Containing Polymeric Nanospheres

LIN Kun-Hua1, SHA Jing1, ZHAO Yong-Chao1, LIU Ming2, JIANG Bo1, XIAO De-Quan3*, YIN Qin-Jian1*

1. College of Chemistry,
2. Analysis and Testing Center, Sichuan University, Chengdu 610064, China;
3. Department of Chemistry, Yale University, New Have, CT 06522, USA

Received:2010-01-12 Online:2010-10-10 Published:2010-10-10
Contact: YIN Qin-Jian. E-mail: changer@scu.edu.cn; XIAO De-Quan. E-mail: dequan.xiao@yale.edu

摘要/Abstract

摘要： 用质子化的4-乙烯基吡啶-丙烯腈无规共聚物(P4VP+-r-AN)与偶氮苯染料酸性间胺黄(MY)在水溶液中通过静电力作用制备了一种新型的侧链偶氮复合物(P4VP-r-AN/MY). 采用FTIR, UV-Vis, DSC, TEM和HRTEM-EDS研究了溶剂对P4VP-r-AN/MY聚集形态的影响, 并初步探讨了P4VP-r-AN/MY聚集体的形成过程及转变机理. 结果表明, P4VP-r-AN/MY在水溶液中聚集形成尺寸为10~250 nm的球形聚集体; 在DMF中, 球形聚集体解聚, 形成较为均匀的薄膜结构; 而向P4VP-r-AN/MY的N,N′-二甲基甲酰胺(DMF)中逐渐增加水的含量, P4VP-r-AN/MY又会重新聚集, 当含水量达到质量分数为62.5%时, P4VP-r-AN/MY聚集形成尺寸为30~200 nm的空心纳米球. 溶剂的组成(水和DMF的质量比)对P4VP-r-AN/MY聚集体形态起着至关重要的作用.

关键词: 酸性间胺黄, 偶氮复合物, 聚合物纳米微球, 自组装

Abstract: A new strategy based on electrostatic interaction technology was provided for design of novel side chain azobenzene complex(P4VP-r-AN/MY) from the protonated P4VP-r-AN(P4VP+-r-AN) and azobenzene dye metanil yellow(MY) in aqueous solution. The self-assembly behavior and morphologies of P4VP-r-AN/MY were investigated by means of FTIR, DSC, UV-Vis, TEM and HRTEM-EDS. The possible formation and transformation progresses of P4VP-r-AN/MY aggregations were also preliminary discussed in this paper. The azobenzene complex was subjected to solvent-induced self-assembly in THF/water mix solvent to construct avariety of morphologies. The azobenzene complex P4VP-r-AN/MY could be self-assembled and aggregated in aqueous solution, and the aggregations shown to be solid polymeric nanospheres on the sizes of 10—250 nm in diameters. The spherical ordered structures of P4VP-r-AN/MY were destroyed in DMF solvent, and converted into film structure. However, in DMF/H2O mixed solvent with a H2O mass fraction of 62.5%, azobenzene chromophore containing polymeric hollow nanospheres on the sizes of 30—200 nm in diameters were directly observed by TEM. The results indicate that the composition of solvents(the mass ratio of H2O and DMF) plays an important role in controlling the shape of self-assembly morphologies.

Key words: Metanil yellow, Azobenzene complex, Polymeric nanosphere, Self-assembly

TrendMD:

林坤华, 沙静, 赵永超, 刘明, 江波, 肖德泉, 殷勤俭. 含偶氮苯生色团的聚合物纳米微球的制备与表征. 高等学校化学学报, 2010, 31(10): 2067.

LIN Kun-Hua, SHA Jing, ZHAO Yong-Chao, LIU Ming, JIANG Bo, XIAO De-Quan*, YIN Qin-Jian*. Synthesis and Characterization of Azobenzene Chromophore Containing Polymeric Nanospheres. Chem. J. Chinese Universities, 2010, 31(10): 2067.

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