新型AIE性能的超支化超分子聚合物的表征

摘要超分子聚合物是超分子化学与聚合物科学的结合体，是由可逆的非共价键作用（如氢键、 π-π堆积、金属配位作用、电荷转移等）将单体单元聚集在一起的聚合物阵列。超分子聚合物包含多种的拓扑形态，例如线型，星型，枝化等，其中超支化超分子聚合物具有独特的分子结构与物理化学性能,因此不仅在传统高分子工业中有巨大的应用前景，在新兴的领域，诸如纳米技术、药物传输、传感器等方面也有着诱人的应用前景。将带有聚集诱导发光效应（AIE）的荧光生色团就被引入到功能高分子的构建中，将进一步扩大它们的应用领域。我们利用主客体相互作用和金属配位作用正交自组装的方法制备了一种具有 AIE 效应的新型超支化超分子聚合物。我们通过 1H NMR、2D (1H-1H NOESY, DOSY) NMR、UV-vis 和乌氏粘度仪等，研究小分子和 Zn2+在溶液中自组装形成二聚体、四聚体和超支化超分子聚合物的过程及它们之间的可逆转化；最后，利用 TEM、DLS、FS、1H NMR、UV-vis 等，研究超支化超分子聚合物的表面形貌和不同外界刺激下的发光性能。88034

毕业论文关键词：聚集诱导发光效应；主客体相互作用；自组装；超支化超分子聚合物；四苯乙烯

Abstract Supramolecular polymers, the combination of supramolecular chemistry and polymer science, are polymeric arrays of repeating units brought together by reversible non-covalent interactions， such as hydrogen bonding，π-πstacking interactions, metal-ligand interactions，charge transfer,

ect 。 Supramolecular polymers are rich in topological morphology, including linear, star, branched, and so on。 Hyperbranched supramolecular polymers not only have a great application prospect in the traditional polymer industry, but also show bright prospect in the emerging fields like nanotechnology, drug delivery, sensors and so forth due to the fact that it possessunique molecular structures and physico-chemical properties。 The introduction of fluorescence chromophore with aggregation-induced emission (AIE) property into theconstruction of functional polymers leads to the expansion of their application fields。 Herein we prepared a novel hyperbranchedsupramolecularpolymerwithAIEproperty by theorthogonal self-assemblyof

host-guest and metal-ligand interactions。 To begin with, the formation of dimer, tetramer and hyperbranched supramolecular polymer in solution through self-assembly of Zn2+ and small molecules was studied by 1H NMR、2D (1H-1H NOESY, DOSY) NMR、UV-vis and Ubbelohde viscometer; in addition, we used TEM, DLS, FS, 1H NMR, UV-vis and so on to study the morphology of hyperbranched supramolecular polymers and its luminescence properties under

multiple external stimuli。

Keyword: aggregation-induced emission； host-guest interactions; self-assembly; hyperbranched supramolecular polymer; tetraphenylethylene

摘要 1

1 引言 4

1。1 超支化超分子聚合物 4

1。2 具有 AIE 效应的荧光超分子聚合物 4

1。3 基于主客体相互作用的超分子聚合物 5

1。4 基于金属配位作用的超分子聚合物 7

2。正文 9源-于,优W尔Y论L文.网wwW.youeRw.com 原文+QQ75201,8766

2。1 实验部分 10 新型AIE性能的超支化超分子聚合物的表征:http://www.youerw.com/cailiao/lunwen_152715.html