Programed Thermoresponsive Polymers with Cleavage-Induced Phase Transition.
cleavage reaction
phase boundary
thermoresponsive polymer
Journal
Molecules (Basel, Switzerland)
ISSN: 1420-3049
Titre abrégé: Molecules
Pays: Switzerland
ID NLM: 100964009
Informations de publication
Date de publication:
18 Sep 2022
18 Sep 2022
Historique:
received:
02
09
2022
revised:
12
09
2022
accepted:
15
09
2022
entrez:
23
9
2022
pubmed:
24
9
2022
medline:
28
9
2022
Statut:
epublish
Résumé
A new programed upper critical solution temperature-type thermoresponsive polymer was developed using water-soluble anionic polymer conjugates derived from polyallylamine and phthalic acid with cleavage-induced phase transition property. Intrinsic charge inversion from anion to cation of the polymer side chain is induced through a side chain cleavage reaction in acidic aqueous media. With the progress of side chain cleavage under fixed external conditions, the polymer conjugates express a thermoresponsive property, followed by shifting a phase boundary due to the change in polymer composition. When the phase transition boundary eventually reached the examined temperature, phase transition occurs under fixed external conditions. Such new insight obtained in this study opens up the new concept of time-programed stimuli-responsive polymer possessing a cleavage-induced phase transition.
Identifiants
pubmed: 36144815
pii: molecules27186082
doi: 10.3390/molecules27186082
pmc: PMC9501266
pii:
doi:
Substances chimiques
Anions
0
Polymers
0
Stimuli Responsive Polymers
0
Water
059QF0KO0R
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
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