Antibacterial performance of fully biobased chitosan-grafted-polybenzoxazine films: Elaboration and properties of released material

Review on the Accelerated and Low-Temperature Polymerization of Benzoxazine Resins: Addition Polymerizable Sustainable Polymers

“…On the contrary, close vicinity of o-methylol group in PH-a assist ROP via inter-molecular H-bonding [353]. The H-bonding between the hydroxyl groups of polybenzoxazine influences physica crosslinks due to extension of intermolecular H-bonding with the polar functionalitie (carbonyl, ether, amine, hydroxyl) present in other polymers such as poly(ɛ-caprolactone (PCL) [354][355][356], poly(ethylene oxide), [357,358] chitosan (CS) [359][360][361][362], amino-cellulose [363] and polyurethane [364][365][366][367]. Although, the effect of OH groups on the polymeriza tion of -OH or -NH2 containing benzoxazine monomers, non-benzoxazine monomers and polymers is not explicitly stated.…”

“…The polymer blends appeared to be homogeneous at the 40-70 nm scale but heterogeneous at the 2-4 nm scale as supported by 13 C CP/MAS NMR spectroscopic analyses [370]. Instead of physical blend, naphthoxazine functional PCL macromonomers were synthesized using NP-ea as the coinitiator for the stannous-2-ethylhexanoate catalyzed living ring-opening polymerization of tension of intermolecular H-bonding with the polar functionalities ne, hydroxyl) present in other polymers such as poly(ɛ-caprolactone) y(ethylene oxide), [357,358] chitosan (CS) [359][360][361][362], amino-cellulose ne [364][365][366][367]. Although, the effect of OH groups on the polymerizacontaining benzoxazine monomers, non-benzoxazine monomers and icitly stated.…”

“…Figure 57b shows a segregation of PCL spherulitic morphologies and an effect on its growth rate is observed which confirms a reduction in their chain mobility and dilution of PCL domains due to the interpenetrating PBz framework [369]. The polymer blends appeared to be homogeneous at the 40-70 nm scale but heterogeneous at the 2-4 nm scale as supported by 13 The H-bonding between the hydroxyl groups of polybenzoxazine influences physical crosslinks due to extension of intermolecular H-bonding with the polar functionalities (carbonyl, ether, amine, hydroxyl) present in other polymers such as poly(ɛ-caprolactone) (PCL) [354][355][356], poly(ethylene oxide), [357,358] chitosan (CS) [359][360][361][362], amino-cellulose [363] and polyurethane [364][365][366][367]. Although, the effect of OH groups on the polymerization of -OH or -NH2 containing benzoxazine monomers, non-benzoxazine monomers and polymers is not explicitly stated.…”

“…It is possible that H-bonding interactions between the produced hydroxyl groups of the open-ring Mannich base of the propagating species and poly(ε-caprolactone) or poly(ε-caprolactam) chains at molecular level may influence the fundamental structural changes of the polybenzoxazine crosslinked networks [354]. between the hydroxyl groups of polybenzoxazine influences physical tension of intermolecular H-bonding with the polar functionalities ine, hydroxyl) present in other polymers such as poly(ɛ-caprolactone) ly(ethylene oxide), [357,358] chitosan (CS) [359][360][361][362], amino-cellulose ane [364][365][366][367]. Although, the effect of OH groups on the polymerizacontaining benzoxazine monomers, non-benzoxazine monomers and licitly stated.…”

Recent development on bio‐based thermosetting resins

“…When the reaction occurs between vanillin and chitosan, the curing temperature can be greatly reduced (about 70 C), 172 and with the integration of imine group, furfuryl amine and chitosan, the improved antibacterial properties were observed (about 125 times higher). 173 The amine group in chitosan could directly participate in the synthesis of benzoxazine as well, the resulting film showed anti-microbial and anti-fungal performance. 174 The reactivity of aldehyde group in vanillin render it has the ability to trigger other addition reactions, which provides the possibility for introducing heteroatoms and electrochemical application potential.…”