Preparation of polyesteramides based on aliphatic amine-containing phenol derivatives via interfacial polymerization

Abstract

A series of polyesteramides with randomly introduced ester/amide group ratio of 50/50 were newly synthesized by reacting terephthaloyl chloride, isophthaloyl chloride and sebacoyl chloride with tyramine and tyrosine. The polymerization was carried out by interfacial polymerization in two phase solvent systems, which gave various polyesteramides with moderate molecular weights in good yields. The chemical structures of the polymers were confirmed by 1 H NMR, IR and elemental analysis. Tyrosine based polyesteramide was degraded thermally around 290 o C to give the polyesteramide, which was obtainable from tyramine. Thermal stability and degradation behaviors were examined by differential scanning calorimetry and thermogravimetric analyses.

Achievements and Trends in Biocatalytic Synthesis of Specialty Polymers from Biomass-Derived Monomers Using Lipases

“…Polyesteramides based on α-amino acids associate the appealing properties of the conventional polyester amides with enzymatic degradability, enhancement of cell-materials interactions, and insertion of functional groups for the attachment of drugs or peptides derived from the presence of the α-amino acid [73]. A series of amino acids used in the production of polyesteramides comprise glycine, allylglycine, lysine, alanine, arginine, glutamic acid, serine, alanine, isoleucine, phenylalanine, tyrosine [73,[81][82][83]. The most abundant amino acid is glutamic acid, which can conceivably be obtained in high yields from manifold natural sources.…”

Cosolvent-Driven Interfacial Polymerization for Superior Separation Performance of Polyurea-Based Pervaporation Membrane

“…TFC membranes manufactured through the method of interfacial polymerization have been widely used in the fields of reverse osmosis [3,4] and nanofiltration [5][6][7] separation processes, but are rarely applied to pervaporation. Interfacial polymerization produces a variety of polymer layers, including those of polyamide [8][9][10][11][12], polyester [8,9,[13][14][15][16][17], and polyurea [18]. In 1977, Rozelle et al [19] used polyethyleneimine (PEI) and toluene diisocyanate (TDI) for interfacial polymerization to prepare NS-100 composite polyurea membrane.…”