2017
DOI: 10.1016/j.eurpolymj.2017.10.023
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Crystallization behavior of precision polymers containing azobenzene defects

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Cited by 23 publications
(37 citation statements)
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“…Bindersgroup studied 48 that has azobenzene moieties in the polymer backbone ( Figure 22). [46] Trans 48 had a T g at 91.8 8 8C to 95.8 8 8C ( Figure 22 b). After UV irradiation, the DSC first heating curve showed that cis 48 had a T g at 70.6 8 8C, which indicated that trans-to-cis photoisomerization in the polymer backbone decreased the T g for more than 20 8 8C ( Figure 22 c, black line).…”
Section: Angewandte Chemiementioning
confidence: 99%
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“…Bindersgroup studied 48 that has azobenzene moieties in the polymer backbone ( Figure 22). [46] Trans 48 had a T g at 91.8 8 8C to 95.8 8 8C ( Figure 22 b). After UV irradiation, the DSC first heating curve showed that cis 48 had a T g at 70.6 8 8C, which indicated that trans-to-cis photoisomerization in the polymer backbone decreased the T g for more than 20 8 8C ( Figure 22 c, black line).…”
Section: Angewandte Chemiementioning
confidence: 99%
“…[49,51] The trans and cis moieties are located in the backbones of polybutadienes,w hich explains why mainchain-type azopolymers (e.g., 48 in Figure 22) have switchable T g . [46] Furthermore,t he distorted cis azobenzene units have weaker intermolecular p-p stacking interactions than the conjugated trans isomers,w hich may also decrease the transition temperatures such as T g .However,side-chain-type azopolymers also have photoswitchable T g .Why do trans and cis side chains influence T g ?T oanswer this question, one of us and co-workers synthesized model polymers with trans and cis side chains (Figure 26 b). [52] Dielectric spectroscopy showed that polymers with trans and cis side chains have different T g .…”
Section: Comparison Of Azopolymers That Show Photoinduced Reversible mentioning
confidence: 99%
“…Kann Licht in Hauptketten‐Azopolymeren die T g schalten und den Fest‐flüssig‐Übergang induzieren? Binders Gruppe untersuchte Polymer 48 , das Azobenzoleinheiten im Polymerrückgrat aufweist (Abbildung ) . trans ‐ 48 hatte eine T g bei 91.8–95.8 °C (Abbildung b).…”
Section: Photoschaltbare Glasübergangstemperaturen Und Photoinduziertunclassified
“…B. 48 in Abbildung ) schaltbare T g ‐Werte aufweisen . Darüber hinaus weisen die verzerrten cis ‐Azobenzoleinheiten schwächere intermolekulare π‐π‐Stapelwechselwirkungen auf als die konjugierten trans ‐Isomere, was auch Übergangstemperaturen, wie die T g , senken kann.…”
Section: Vergleich Von Azopolymeren Die Photoinduzierte Reversible Funclassified
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