Abstract:
:The synthesis of highly biocompatible polymers is important for modern biotechnologies and medicine. Here, we report a unique process based on a two-step high-pressure ramp (HPR) for the ultrafast and efficient bulk polymerization of 2-(hydroxyethyl)methacrylate (HEMA) at room temperature without photo- and thermal activation or addition of initiator. The HEMA monomers are first activated during the compression step but their reactivity is hindered by the dense glass-like environment. The rapid polymerization occurs in only the second step upon decompression to the liquid state. The conversion yield was found to exceed 90% in the recovered samples. The gel permeation chromatography evidences the overriding role of HEMA2(••) biradicals in the polymerization mechanism. The HPR process extends the application field of HP-induced polymerization, beyond the family of crystallized monomers considered up today. It is also an appealing alternative to typical photo- or thermal activation, allowing the efficient synthesis of highly pure organic materials.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Evlyukhin E,Museur L,Traore M,Perruchot C,Zerr A,Kanaev Adoi
10.1038/srep18244subject
Has Abstractpub_date
2015-12-16 00:00:00pages
18244issn
2045-2322pii
srep18244journal_volume
5pub_type
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