Study on the Synthesis and Application of Dendrimers

本论文共分五章，包括树状大分子的研究进展；树状大分子PAMAM-FCD的合成与应用；树状大分子PAMAM-AND的合成与应用；树状大分子PAMAM-BPA的合成与应用；研究工作的结论与展望。第一章为绪论，评述了树状大分子在现代生物医学和催化、纳米、以及光电材料等方面的重要意义及该领域中已经取得的一些令人激动的研究成果。本章分为两部分，第一部分介绍了树状大分子的历史背景，第二部分主要从八个方面介绍了树状大分子在生物医学领域、催化、纳米、光电材料、膜材料、液晶、涂层、表面活性剂、作为容纳小分子的主体以及其它领域等方面的应用、合成方法、性质研究和研究进展。并在此基础上提出了本论文的研究设想。第二章主...This dissertation consists of five chapters, including the overview of the dendrimers, synthesis and application of novel PAMAM-FCD dendrimers; synthesis and application of novel PAMAM-AND dendrimers; synthesis and application of novel PAMAM-BPA dendrimers; the conclusion and prospect of the present research work. In chapter one, highlights of new finding in dendrimers and its significance in m...学位：理学博士院系专业：化学化工学院材料科学系_高分子化学与物理学号：B20013600

Progress in Hyperbranched Polymers

超支化聚合物由于具有高度独特的结构特征、合成方法和应用领域而引起了聚合物科学家们浓厚的兴趣。本文对超支化聚合物的最新研究进展进行讨论 ,旨在加深人们对该领域的了解 ,从而促进该领域的快速发展。Hyperbranched polymers have received more and more research interest from polymer scientists, because of their unique structural characteristics, synthetic methods as well as application fields.The present paper reviews the most recent advance in hyperbranched polymer, with the emphasis being laid on the above mentioned three related aspects in an attempt to make this field to be further understood, and to accelerate its development more quickly

树状大分子PAMAM(1G)-FCD的合成及荧光性能

合成了外围由小分子2-芴醛修饰的树状大分子PAMAM(1G)-FCD,用IR,1H NMR,MALDI-TOF-MS等手段表征了其结构,并对其荧光性能及Sn2+对该性能的影响进行了研究,结果表明,Sn2+能使化合物荧光显著增强.紫外光谱表明,随着PAMAM(1G)-FCD溶液中Sn2+浓度的增加,体系在360 nm处出现了新的吸收峰,表明二者之间存在化学反应.故该树状分子有望作为难得的蓝光区荧光材料及金属-树状大分子杂化材料

Studies on the synthesis and fluorescent properties of PAMAMDSCL dendrimer

合成了外围由小分子修饰的树枝状大分子PAMAM(1G)-DSCL,通过紫外、质谱等表征了其结构,并对其吸附染料分子EB、MB前后的荧光性能进行了研究,发现这种吸附还与染料分子的体积有关。PAMAM(1G)-DSCL were synthesized and characterized by MS,UV etc.The fluorescent properties of PAMAM(1G)-DSCL without the dyes of EB and MB and with the dyes were also studied,the results show that the absorbing property was connected with the volume of the dyes

The peripheral modifying with self-assemble of dendrimer and the phase transferr of the encapsulated fluorescent guests

研究了树枝状大分子PAMAM(G=4)外围氨基与脂肪酸的自组装行为;同时研究了为PAMAM(G=4)树状大分子所包裹的荧光客体分子PHL和RB通过上述树状大分子的表面修饰实现由水相向油相的转移以及在非极性正己烷相中的紫外及荧光性能,发现当十二酸浓度为10%时,41%的PHL分子和几乎100%的RB分子可由水相转移到正己烷相,且这些被包裹在自组装体系中的染料分子的荧光未被猝灭。The self-assemble properties between the fatty acid and the peripheral amino of the PAMAM(G=4) dendrimer were studied,the UV and the fluorescent properties of the encapsulated fluorescent dyes in the hexane were also studied,the results show that when the concentration of the dodecanoic acid is 10%,the number of PHL and RB those have been transferred into the hexane is 41% and 100% respectively.The fluorescent of these encapsulated fluorescent dyes in this self-assemble system can't be quenched

Studies on synthesis and properties of PAMAM-DSCL dendrimer

合成了外围由小分子修饰的树枝状大分子PAMAM(1G) DSCL,通过紫外、质谱等表征了其结构,并对其性能进行了研究。PAMAM(1G)-DSCL were synthesized and characterized by MS, UV, etc. Its properties were studied

Effect of Cu~(2+) upon the Fluorescent Properties of Dendrimer PAMAM-FCD

联系人简介: 何旭敏, 女, 博士, 教授, 从事金属有机及高分子材料研究. Em ai:l hejin@ xmu. edu. cn[中文文摘]以小分子2-芴醛( FCD)修饰树状大分子聚酰胺氨PAMAM,合成了1~ 3代树状大分子PAMAM-FCD, 用IR,1H NMR 和MALD I-TOF-MS等手段表征了化合物结构, 研究了Cu2+ 浓度对其荧光及紫外性能的影响. 结果表明, Cu2+ 可使其荧光强度和紫外吸收不同程度地增强. 在紫外光谱中, Cu2+ 自身的吸收峰消失, 表明Cu2+ 参与配位.PAMAM-FCD有望成为蓝光区荧光材料及树状大分子-铜杂化材料.[英文文摘]Dendrimer of polyamidoamine PAMAM was modified with 2-fluorenecarboxa ldehyde( FCD ) to form dendrimers PAMAM-FCD of generation one, two and three, respect ively. Structures and propert ies of PAMAM-FCD were character ized by IR, 1H NMR andMALD I-TOF-MS, with special attention being paid to the effect of Cu2+ on the fluorescent and UV spectra of these dendrimers. The resu lts show tha,t even though Cu2 + usually behaves as a fluorescence quencher, it can significantly enhance the fluorescence of these dendrim ers. Furthermore, the absorbance of PAMAM-FCD in the UV spectrum was also found to increase with the add ition of Cu2+ . The disappearance of the absorbance of Cu2+ it self suggest that coordination reaction between Cu2 + and PAMAM-FCD has occurred. These PAMAM-FCD dendr imers are prom ising to be the scarce material to em it blue fluorescence or as a dendrimer copper hybrid material.教育部新世纪优秀人才支持计划项目(批准号:NCET-04-0603);江苏省高校自然科学基础研究面上项目(批准号:07KJD150097)资

Synthesis and Fluorescent Properties of Dendrimer PAMAM(1G)-FCD

A dendrimer of PAMAM (1G)-FCD was synthesized. Its structure was characterized via IR, H-1 NMR, MALDI-TOF-MS, etc. The fluorescent properties of PAMAM(1G) -FCD, as well as the influence of Sn2+ on tills dendrimer, were also studied systematically. The results show that the fluorescence of tills dendrimer can be significantly enhanced by Sn2+. The UV spectra detected a new absorption peak at 360 rim with the addition of Sn2+ into the Solution of PAMAM(1G) -FCD, suggesting that chemical reaction occured in the Sn2+ and PAMAM(1G) -FCD system. This hybrid material of metal-dendrimer holds promise as a scarce material to emit blue fluorescence

Studies on synthesis and fluorescence properties of a new promising hyperbranched aromatic-alphatic polyamide

［中文文摘］用溶液缩聚法合成一系列新型的超支化芳香-脂肪共聚酰胺。通过红外和核磁等表征了其结构,并对其荧光性能进行了研究。［英文文摘］A series of new hyperbranched aromatic-alphatic polyamide were synthesized and characterized by IR, 1HNMR, et al. Their fluorescence properties were studied

Study on the Synthesis and Fluorescence Properties of Polyamide Dendrimers with Peripheral Fluorophore

［中文文摘］合成了1～5代外围由小分子荧光体修饰的树枝状聚酰胺,通过红外、紫外、核磁等表征了其结构,并对其荧光性能进行了研究。修饰后的固体产物的荧光较修饰前粘稠体产物的荧光强得多。树枝状高分子荧光受组分比、代数、溶液浓度、溶剂等因素的影响。有机硅对树状高分子的端氨基与3,5二羟基苯甲酸按1/1摩尔比反应时,其产物荧光最强。对于端氨基与3,5二羟基苯甲酸摩尔比为1/1的不同代树枝状聚酰胺而言,2代产物荧光最强。［英文文摘］　Five generation of polyamide dendrimers with peripheral fluorophore are synthesized and characterized by IR ,UV , etc. Their fluorescence properties are studied. The fluorescent intensity of PAMAM23 ,52DAC is stronger than that of PA2 MAM. The fluorescent intensity of the dendrimer is effected by the ratio , generation , concentration , solvent . When the mol2 ratio of periphery amino to 3 ,52DAC is 1/ 1 , the fluoresent intensity of product PAMAM23 ,52DAC is the strongest . For the different generation of PAMAM23 ,52DAC , the fluoresent intensity of the second generation is the strongest