The symmetry of functionalized poly(propylene imine) dendrimers probed with hyper-Rayleigh scattering

Put, Eric; Clays, Koen; Persoons, André; Biemans, H. A. M.; Luijkx, C.M.P.; Meijer, E. W.

doi:10.1016/0009-2614(96)00840-8

Cited by 36 publications

(26 citation statements)

References 25 publications

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“…On the other hand, dendrimers [5][6][7] belong to well-defined highly branched molecules emanating from a central core with a large number of functional terminals at their periphery. Owing to their unusual chemical and physical properties such as the extraordinarily high functionalities, versatile tuneability, unique rheology properties, optical-enhancement effects, self-assembly, and host-guest particulates [8], dendrimers have been attracting tremendous interests in the recent 26 years since the first successful achievement of poly(amidoamine) dendrimers (PAMAMs) by Tomalia and co-workers [7].…”

Section: Introductionmentioning

confidence: 99%

Learning about novel amine-adduct curing agents for epoxy resins: Butyl-glycidylether-modified poly(propyleneimine) dendrimers

Wan

et al. 2011

Thermochimica Acta

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Section: Introductionmentioning

confidence: 99%

Learning about novel amine-adduct curing agents for epoxy resins: Butyl-glycidylether-modified poly(propyleneimine) dendrimers

Wan

et al. 2011

Thermochimica Acta

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“…The purpose of this research is to advance the knowledge of these novel m icroenvironments and the way in which they are affected by generation-information that is vital to future applications. Previous spectroscopic studies of dendrimers 2,[8][9][10][11][12][13][14][15][16][17][18][19] have frequently used uorescent probes, such as pyrene and 1,6-diphenyl-1,3,5-hexatriene. 20 -22 In many of these studies, authors note a uorescent background signal attributed to the PAMAM dendrimers, which is rather unexpected.…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic Investigations of Polyamido Amine Starburst Dendrimers with Reichardt's ET-30 Dye

Richter-Egger

Tucker

2000

Appl Spectrosc

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The association between Reichardt's ET-30 dye and amine- and carboxylate-terminated polyamido amine (PAMAM) dendrimers was investigated and shown to be different from results reported for micelles and traditional polymers. The absorption spectra illustrated that the solvatochromic, microenvironmental polarity probe associated with PAMAM dendrimers in less polar regions with a polarity comparable to 1-decanol. Model compounds that mimic PAMAMs' surface groups and branching moieties were used to better define the associated dye's location and demonstrated that ET-30 penetrated beyond the dendrimer's surface groups, into the interfacial region. Additionally, changing sample preparation methods controlled the nature and extent of the dye/dendrimer association. Under certain experimental conditions, the dye/dendrimer complexes formed large aggregates.

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“…[34] Alternatively, the apparent first hyperpolarizability per chromophore on the dendrimer drops. At first, in the dendrimers with low generation number, there is a linear increase with number of end groups (related to the generation number).…”

Section: K Clays Et Al / Correlated Chromophores In Organic Mesoscomentioning

confidence: 99%

Nonlinear Optical Properties of Correlated Chromophores in Organic Mesoscopic Superstructures

Clays¹,

Hendrickx

Verbiest

et al. 1998

Adv. Mater.

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A new design strategy for enhanced nonlinear optical properties, based on a simple vector model and situated at the mesoscopic level, between the microscopic molecular level and the macroscopic bulk, is explained and exemplified by a number of organic superstructures. The second-order nonlinear optical properties of the structures are analyzed in terms of the corresponding properties of the individual monomeric chromophores that constitute the structure. The chromophores can be considered as electronically independent with a high symmetry. A simple vector model can then account for the large secondorder nonlinear optical polarizability of the mesoscopic superstructure. Another important advantage that is clear from the vector analysis is the improved chromophore alignment, owing to the enlarged mesoscopic dipole moment.

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The symmetry of functionalized poly(propylene imine) dendrimers probed with hyper-Rayleigh scattering

Cited by 36 publications

References 25 publications

Learning about novel amine-adduct curing agents for epoxy resins: Butyl-glycidylether-modified poly(propyleneimine) dendrimers

Learning about novel amine-adduct curing agents for epoxy resins: Butyl-glycidylether-modified poly(propyleneimine) dendrimers

Spectroscopic Investigations of Polyamido Amine Starburst Dendrimers with Reichardt's ET-30 Dye

Nonlinear Optical Properties of Correlated Chromophores in Organic Mesoscopic Superstructures

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