Synthesis and characterization of segmented polyurethanes based on amphiphilic polyether diols

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 diisocyanat...

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Veröffentlicht in:	Biomaterials 1996-12, Vol.17 (23), p.2273-2280
Hauptverfasser:	Lan, P.N., Corneillie, S., Schacht, E., Davies, M., Shard, A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Biocompatible Materials - chemical synthesis Biocompatible Materials - chemistry Biological and medical sciences Butylene Glycols - chemistry Calorimetry, Differential Scanning Chemical Phenomena Chemistry, Physical Epoxy Compounds - chemistry Ethylenediamines - chemistry Hydrogen Bonding Isocyanates - chemistry Magnetic Resonance Spectroscopy Materials Testing Medical sciences Molecular Weight morphology phase separation Poloxalene - chemical synthesis Poloxalene - chemistry Polyethylene Glycols - chemistry Polyurethanes Polyurethanes - chemical synthesis Polyurethanes - chemistry Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects) Spectrophotometry, Infrared Technology. Biomaterials. Equipments. Material. Instrumentation Tensile Strength
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Zusammenfassung:	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.
ISSN:	0142-9612 1878-5905
DOI:	10.1016/0142-9612(96)00056-7