title: Synthesis and characterization of segmented polyurethanes based on amphiphilic polyether diols.
abstract: Segmented polyurethanes (SPUs) based on polyethylene glycol (PEG), polypropylene glycol (PPG) and a series of Pluronics with different ethylene oxide/propylene oxide ratios (EO/PO) and molecular weights were prepared. Different diisocyanates were used for making SPUs: 4,4-diphenylmethane diisocyanate (MDI), 4,4-dicyclohexylmethane diisocyanate (MDCI), hexamethylene diisocyanate (HMDI) and isophorone diisocyanate (IPDI). 1,4-Butane diol (BD) and ethylene diamine (ED) were used as chain extenders. The polymers obtained were characterized by infrared spectroscopy (IR), nuclear magnetic resonance (NMR) and differential scanning calorimetry (DSC). The microphase morphology (phase separation and phase mixing) is discussed in more detail.
authors.affiliation: University of Gent, Department of Organic Chemistry, Belgium.
authors.forename: P N
authors.initials: PN
authors.lastname: Lan
authors.forename: S
authors.initials: S
authors.lastname: Corneillie
authors.forename: E
authors.initials: E
authors.lastname: Schacht
authors.forename: M
authors.initials: M
authors.lastname: Davies
authors.forename: A
authors.initials: A
authors.lastname: Shard
mesh_terms: D001672:Biocompatible Materials / Q000138:chemical synthesis* / Q000737:chemistry; D002072:Butylene Glycols / Q000737:chemistry; D002152:Calorimetry, Differential Scanning; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004852:Epoxy Compounds / Q000737:chemistry; D005029:Ethylenediamines / Q000737:chemistry; D006860:Hydrogen Bonding; D017953:Isocyanates / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D008422:Materials Testing; D008970:Molecular Weight; D011060:Poloxalene / Q000138:chemical synthesis / Q000737:chemistry; D011092:Polyethylene Glycols / Q000737:chemistry; D011140:Polyurethanes / Q000138:chemical synthesis* / Q000737:chemistry; D013055:Spectrophotometry, Infrared; D013718:Tensile Strength
chemical_list: D001672:Biocompatible Materials; D002072:Butylene Glycols; D004852:Epoxy Compounds; D005029:Ethylenediamines; D017953:Isocyanates; D011140:Polyurethanes; D011092:Polyethylene Glycols; C031234:ethylenediamine; C039681:1,4-butanediol; D011060:Poloxalene; C009068:propylene oxide