What question did this study set out to answer?

To characterize the terminal microstructure, quantify hydroxyl functionality, and elucidate the radical reaction mechanisms of hydrogen peroxide–initiated hydroxytelechelic polybutadiene.

April 1, 1978Die Makromolekulare Chemie

Polybutadiènes hydroxytéléchéliques, 1. Microstructure, fonctionnalité et mécanismes réactionnels. Etude par résonance magnétique nucléaire du proton et du carbone 13

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Authors

GFGeneviève Fages QPQuang Tho PhamNingxia Hui Autonomous Region Peoples Hospital

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Implication

Spectroscopic analysis reveals primary alcohol end-groups in hydrogen peroxide–initiated polybutadienes, highlighting radical polymerization reaction pathways.

Key Points

To characterize the terminal microstructure, quantify hydroxyl functionality, and elucidate the radical reaction mechanisms of hydrogen peroxide–initiated hydroxytelechelic polybutadiene.
Analyzed hydrogen peroxide–initiated hydroxytelechelic polybutadiene synthesized in alcoholic media using 1H and 13C nuclear magnetic resonance (NMR) spectroscopy.
Determined number-average hydroxyl functionalities via signal integration of accumulated 1H NMR spectra.
Identified three primary alcoholic end-groups: α-unsaturated, β-substituted/α-unsaturated, and γ-unsaturated structures.
Found that calculated number-average hydroxyl functionalities are slightly underestimated due to minor, low-concentration fractions of secondary and tertiary alcohols.
Elucidated the radical initiation, chain transfer, and termination pathways governing butadiene polymerization in alcoholic media.

Cite This Study

Fages et al. (1978) studied this question.

synapsesocial.com/papers/6aa4694dbbe8d7d2dab20baf https://doi.org/10.1002/macp.1978.021790415

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Implication

Spectroscopic analysis reveals primary alcohol end-groups in hydrogen peroxide–initiated polybutadienes, highlighting radical polymerization reaction pathways.

Polybutadiènes hydroxytéléchéliques, 1. Microstructure, fonctionnalité et mécanismes réactionnels. Etude par résonance magnétique nucléaire du proton et du carbone 13

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Cite This Study

Polybutadiènes hydroxytéléchéliques, 1. Microstructure, fonctionnalité et mécanismes réactionnels. Etude par résonance magnétique nucléaire du proton et du carbone 13

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