Synthesis of functional polymers by chemical modification of PECH and PECH–PEO with substituted phenolates

Liquid crystalline polyamines containing side dendrons: Toward the building of ion channels based on polyamines

“…Since we obtained good modification degrees and detected no dehydrochlorination side reactions in the chemical modification of PECH [12,13], we were encouraged to use the same strategy and reaction conditions also for poly(epichlorohydrin-co-ethylene oxide) [P(ECH-co-EO)]. In a very recent paper [14], we have reported the preparation of a new family of liquid crystalline columnar polyethers by chemically modifying P(ECH-co-EO) with the dendron 3,4,5-tris[4-(n-dodecan-1-yloxy) benzyloxy]benzoate under different conditions.…”

Chemical Modification of Poly(epichlorohydrin) Using Montmorillonite Clay

“…This can be supported further by elemental analysis data and the calculations of the reaction yield mentioned below. Also, 13 C NMR spectra were free from any of the signals corresponding to unsaturated vinyl ether units 22,23 in a detectable amount indicating the absence of dehydrohalogenation reaction under our experimental conditions and excluding the possibility of side product formation.…”

“…[7][8][9][10][11] Much attention has been paid to the modification of PECH with a large number of nucleophiles such as azides, 12 carbazole, 13 carboxylates, 14,15 sulphur compounds 12,[16][17][18] and phenolates [19][20][21] either under conventional conditions or under phase transfer catalysis (PTC) conditions. [22][23][24] On this basis, the present work deals with the preparation of PECH through cationic ring opening polymerization followed by nucleophilic displacement of chlorine functionality with heterocyclic amines using Mghnite-H ＋ catalyst, a new non-toxic cationic initiator, heterocyclic monomers 25,26 and vinyl monomers. 27,28 The catalyst can be easily separated later from the polymer product and regenerated by heating at a temperature above 100 ℃.…”

Green Polymerization of 4-(Oxiran-2-ylmethyl)morpholine

“…Much attention has been paid to the modification of polyepichlorohydrine (PECH) with a large number of nucleophiles such as carboxylates, phenolates, heterocyclic amines [2][3][4][5][6].…”

“…In cationic polymerization, the traditional catalysts, namely BF3, FSO3H, HClO4, are not always effective and require the presence, in great quantity, of a promoter [1][2][3][4][5][6][7][8] such as olefin oxide, acetyl, chloride, or acetic anhydride.…”