Synthesis and characterization of poly(glyceryl glycerol) block copolymers

Frederik Wurm; Jörg Nieberle; Holger Frey

doi:10.1021/ma702458g

Synthesis and characterization of poly(glyceryl glycerol) block copolymers

Frederik Wurm, Jörg Nieberle, Holger Frey^*

^*Corresponding author for this work

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

67 Citations (Scopus)

Abstract

A new block copolymer was synthesized and characterized based on poly(ethylene oxide) (PEO) and poly(glyceryl glycerol) (PGG). The resulting polymer is found to bear two additional hydroxyl groups in every PGG repeat unit, and the nuclear magnetic resonance (NMR) characterization of PEO-PGG diblock copolymers confirms the presence of dendritic and terminal units. The results also indicate that all polymerizations result in quantitative yield and full conversion, when the degree of polymerization of PGG is adjusted to a certain limit. Characterization data for all polymers is prepared by varying the molecular weight of both PEO and PGG segments. Molecular weight determination through NMR spectroscopy is found to be error-prone due to the lack of a well-separated end-group signal.

Original language	English
Pages (from-to)	1909-1911
Number of pages	3
Journal	Macromolecules
Volume	41
Issue number	6
DOIs	https://doi.org/10.1021/ma702458g
Publication status	Published - 25 Mar 2008
Externally published	Yes

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title = "Synthesis and characterization of poly(glyceryl glycerol) block copolymers",

abstract = "A new block copolymer was synthesized and characterized based on poly(ethylene oxide) (PEO) and poly(glyceryl glycerol) (PGG). The resulting polymer is found to bear two additional hydroxyl groups in every PGG repeat unit, and the nuclear magnetic resonance (NMR) characterization of PEO-PGG diblock copolymers confirms the presence of dendritic and terminal units. The results also indicate that all polymerizations result in quantitative yield and full conversion, when the degree of polymerization of PGG is adjusted to a certain limit. Characterization data for all polymers is prepared by varying the molecular weight of both PEO and PGG segments. Molecular weight determination through NMR spectroscopy is found to be error-prone due to the lack of a well-separated end-group signal.",

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T1 - Synthesis and characterization of poly(glyceryl glycerol) block copolymers

AU - Wurm, Frederik

AU - Nieberle, Jörg

AU - Frey, Holger

PY - 2008/3/25

Y1 - 2008/3/25

N2 - A new block copolymer was synthesized and characterized based on poly(ethylene oxide) (PEO) and poly(glyceryl glycerol) (PGG). The resulting polymer is found to bear two additional hydroxyl groups in every PGG repeat unit, and the nuclear magnetic resonance (NMR) characterization of PEO-PGG diblock copolymers confirms the presence of dendritic and terminal units. The results also indicate that all polymerizations result in quantitative yield and full conversion, when the degree of polymerization of PGG is adjusted to a certain limit. Characterization data for all polymers is prepared by varying the molecular weight of both PEO and PGG segments. Molecular weight determination through NMR spectroscopy is found to be error-prone due to the lack of a well-separated end-group signal.

AB - A new block copolymer was synthesized and characterized based on poly(ethylene oxide) (PEO) and poly(glyceryl glycerol) (PGG). The resulting polymer is found to bear two additional hydroxyl groups in every PGG repeat unit, and the nuclear magnetic resonance (NMR) characterization of PEO-PGG diblock copolymers confirms the presence of dendritic and terminal units. The results also indicate that all polymerizations result in quantitative yield and full conversion, when the degree of polymerization of PGG is adjusted to a certain limit. Characterization data for all polymers is prepared by varying the molecular weight of both PEO and PGG segments. Molecular weight determination through NMR spectroscopy is found to be error-prone due to the lack of a well-separated end-group signal.

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SP - 1909

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JO - Macromolecules

JF - Macromolecules

IS - 6

ER -

Synthesis and characterization of poly(glyceryl glycerol) block copolymers

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