2020
DOI: 10.1039/d0sm01658f
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Characterization of N-phenylmaleimide-terminated poly(ethylene glycol)s and their application to a tetra-arm poly(ethylene glycol) gel

Abstract: Tetra-arm poly(ethylene glycol) (TetraPEG) gels are tough materials whose toughness originates from their uniform network structure. They can be formed by combining the termini of tetra-arm polymers via chemical reactions...

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Cited by 8 publications
(6 citation statements)
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“…The hydroxy groups at each chain end were then modified with a phenylmaleimide (Ph-Mal) moiety. [12,13] We synthesized three precursor polymers: 3arm with M n = 32 kDa, 4-arm with M n = 24 kDa, and 4-arm with M n = 44 kDa. We refer to these precursors as 3-arm 30k, 4-arm 20k, and 4-arm 40k, respectively.…”
Section: Preparation and Mechanical Performance Of The Elastomermentioning
confidence: 99%
“…The hydroxy groups at each chain end were then modified with a phenylmaleimide (Ph-Mal) moiety. [12,13] We synthesized three precursor polymers: 3arm with M n = 32 kDa, 4-arm with M n = 24 kDa, and 4-arm with M n = 44 kDa. We refer to these precursors as 3-arm 30k, 4-arm 20k, and 4-arm 40k, respectively.…”
Section: Preparation and Mechanical Performance Of The Elastomermentioning
confidence: 99%
“…Maleimide reagents were prepared via an addition reaction between PMPI and alcohol or amine, following methods detailed in previous studies. [32][33][34]…”
Section: Synthesis Of Maleimidesmentioning
confidence: 99%
“…In other words, an easy process for obtaining maleimide would freely modify BFP derived from furfuryl compounds. In response to this requirement, we previously developed a modification reaction using p-maleimidophenyl isocyanate (PMPI) and its analogies [32][33][34] for the introduction of the maleimide structure into polymer scaffolds. While the utilization of PMPI had been reported in the fields of medicine 35,36 and materials, [37][38][39] we have achieved the development of simple synthetic methods and characterization of PMPI analogies to expand their practical use.…”
Section: Introductionmentioning
confidence: 99%
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“…N-Alkyl MI undergoes light-induced [2 + 2] dimerization, 134 leading to uncontrolled, spontaneous linking between chains. Takashima and coworkers 135,136 found that N-arylmaleimide (PhMI) had improved stability against dimerization while exhibiting even higher reactivity toward Michael addition compared with the N-alkyl analog. Commercially available 4f-PEG-OH could be easily functionalized with isocyanate-bearing PhMI.…”
Section: Reviewmentioning
confidence: 99%