Unraveling the Molecular Magic: AI Insights on the Formation of Extraordinarily Stretchable Hydrogels
arxiv(2024)
摘要
The deliberate manipulation of ammonium persulfate, methylenebisacrylamide,
dimethyleacrylamide, and polyethylene oxide concentrations resulted in the
development of a hydrogel with an exceptional stretchability, capable of
extending up to 260 times its original length. This study aims to elucidate the
molecular architecture underlying this unique phenomenon by exploring potential
reaction mechanisms, facilitated by an artificial intelligence prediction
system. Artificial intelligence predictor introduces a novel approach to
interlinking two polymers, involving the formation of networks interconnected
with linear chains following random chain scission. This novel configuration
leads to the emergence of a distinct type of hydrogel, herein referred to as a
"Span Network." Additionally, Fourier-transform infrared spectroscopy (FTIR) is
used to investigate functional groups that may be implicated in the proposed
mechanism, with ester formation confirmed among numerous hydroxyl end groups
obtained from chain scission of PEO and carboxyl groups formed on hydrogel
networks.
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