Synthesis of new polyimides with 1,2,3-triazole units

Abstract

New polyimides with 1,2,3-triazole units were prepared by click reaction of α,α'-bis(azidosuccinimide)s with bispropargyl monomers or AB-monomers containing azide and propargyl groups. The α,α'-bis(azidosuccinimide)s were obtained by the addition of hydrazoic acid to bismaleimide monomers. The structure of monomers and polymers was confirmed by FTIR and 1 H-NMR spectroscopy and all synthesized compounds were characterized through thermal methods.

Chemical modification of chloromethylated polysulfones via click reactions

“…AC-3 was prepared by the Williamson reaction of p-nonylphenol and propargyl bromide in the presence of anhydrous potassium carbonate in dry acetone solution, according to previous work. 32 The liquid product was obtained by distillation. 1…”

“…The click chemistry strategy has been successfully applied to macromolecular chemistry, affording polymeric materials varying from block copolymers,28 functional polymers,29–30 dendrimers31 to complex macromolecular structures. In a previous paper32 we reported the synthesis of poly(1,2,3‐triazole)s from bis(azidosuccinimide)s and bispropargyl monomers using the click reaction.…”

High performance bismaleimide resins modified by novel allyl compounds based on polytriazoles

“…o,o'-Diallylbisphenol A (DABPA) and 2-((2-allyl-4-(2-(3-allyl-4-(oxiran-2-ylmethoxy)phenyl)propan-2-yl)phenoxy)methyl) oxirane (3) were prepared starting from bisphenol A according to the procedure reported in our previous communications [17,21]. Bisazido-succinimide 2(a-c) were prepared according to our method presented in a previous paper [22]. Synthesis of (2R, 2'R')-1,1'-{propane-2,2'-diylbis [(2-allyl-4,1-phenylene) oxy]}bis(3-azidopropan-2-ol) (4) The diazide 4 was prepared by regioselective ring opening of epoxide groups from compound 3 with sodium azide according to the modified method described in the literature [23].…”

“…The functional monomers 2(a-c), 4 and 5 were prepared according to the methods described in the literature [22][23][24] and the synthesis is illustrated in Scheme 1. Structure of these monomers was confirmed by FT-IR and 1 H-NMR spectroscopy and elemental analysis.…”