3D structure of dendritic and hyper-branched macromolecules by X-ray diffraction

Valeri Petkov; Vencislav Parvanov; Donald Tomalia; Douglas Swanson; Debora Bergstrom; Tom Vogt

doi:10.1016/j.ssc.2005.03.012

3D structure of dendritic and hyper-branched macromolecules by X-ray diffraction

Valeri Petkov, Vencislav Parvanov, Donald Tomalia, Douglas Swanson, Debora Bergstrom, Tom Vogt

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

The atomic ordering in dendritic and hyper-branched macromolecules has been determined by X-ray diffraction. The approach of the atomic pair distribution function technique has been used due to the lack of 3D periodicity in these polymeric materials. Dendrimers are found to possess a semi-regular structure riddled with nanosize cavities. The cavities are joined into channels connecting dendrimer's surface and core. In contrast, hyper-branched polymers are rather irregular at the atomic scale and with less accessible interior.

Original language	English
Pages (from-to)	671-675
Number of pages	5
Journal	Solid State Communications
Volume	134
Issue number	10
DOIs	https://doi.org/10.1016/j.ssc.2005.03.012
State	Published - Jun 2005

Keywords

A. Nanostructured materials
C. X-ray diffraction

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10.1016/j.ssc.2005.03.012

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title = "3D structure of dendritic and hyper-branched macromolecules by X-ray diffraction",

abstract = "The atomic ordering in dendritic and hyper-branched macromolecules has been determined by X-ray diffraction. The approach of the atomic pair distribution function technique has been used due to the lack of 3D periodicity in these polymeric materials. Dendrimers are found to possess a semi-regular structure riddled with nanosize cavities. The cavities are joined into channels connecting dendrimer's surface and core. In contrast, hyper-branched polymers are rather irregular at the atomic scale and with less accessible interior.",

keywords = "A. Nanostructured materials, C. X-ray diffraction",

author = "Valeri Petkov and Vencislav Parvanov and Donald Tomalia and Douglas Swanson and Debora Bergstrom and Tom Vogt",

note = "Funding Information: Thanks are due to Yongjae Lee for the help with the synchrotron experiments. This work was supported by the Army Research Laboratory under Cooperative Agreement DAAD19-03-2-0012 and in part by NSF through Grant DMR-0304391 (NIRT). Beamline x7a at the NSLS is supported by the US Department of Energy through DE-AC02-98-CH10886.",

year = "2005",

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doi = "10.1016/j.ssc.2005.03.012",

language = "English",

volume = "134",

pages = "671--675",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Solid State Communications",

number = "10",

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T1 - 3D structure of dendritic and hyper-branched macromolecules by X-ray diffraction

AU - Petkov, Valeri

AU - Parvanov, Vencislav

AU - Tomalia, Donald

AU - Swanson, Douglas

AU - Bergstrom, Debora

AU - Vogt, Tom

N1 - Funding Information: Thanks are due to Yongjae Lee for the help with the synchrotron experiments. This work was supported by the Army Research Laboratory under Cooperative Agreement DAAD19-03-2-0012 and in part by NSF through Grant DMR-0304391 (NIRT). Beamline x7a at the NSLS is supported by the US Department of Energy through DE-AC02-98-CH10886.

PY - 2005/6

Y1 - 2005/6

N2 - The atomic ordering in dendritic and hyper-branched macromolecules has been determined by X-ray diffraction. The approach of the atomic pair distribution function technique has been used due to the lack of 3D periodicity in these polymeric materials. Dendrimers are found to possess a semi-regular structure riddled with nanosize cavities. The cavities are joined into channels connecting dendrimer's surface and core. In contrast, hyper-branched polymers are rather irregular at the atomic scale and with less accessible interior.

AB - The atomic ordering in dendritic and hyper-branched macromolecules has been determined by X-ray diffraction. The approach of the atomic pair distribution function technique has been used due to the lack of 3D periodicity in these polymeric materials. Dendrimers are found to possess a semi-regular structure riddled with nanosize cavities. The cavities are joined into channels connecting dendrimer's surface and core. In contrast, hyper-branched polymers are rather irregular at the atomic scale and with less accessible interior.

KW - A. Nanostructured materials

KW - C. X-ray diffraction

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U2 - 10.1016/j.ssc.2005.03.012

DO - 10.1016/j.ssc.2005.03.012

M3 - Article

AN - SCOPUS:18144405806

SN - 0038-1098

VL - 134

SP - 671

EP - 675

JO - Solid State Communications

JF - Solid State Communications

IS - 10

ER -

3D structure of dendritic and hyper-branched macromolecules by X-ray diffraction

Abstract

Keywords

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