Sulfonated dimethyl fumarate (SDMF) was prepared with dimethyl fumarate (DMF) and sodium hydrogensulfite (NaHSO 3 ). Sodium sulfonate side-chain poly-(ethylene oxide) (SPEO) was synthesized by grafting sodium sulfonate onto the chain of PEO with molecular weights of 400, 600, 800, and 1000. SPEO was
Polyurethane networks based on poly(ethylene oxide)
β Scribed by M. Zulfiqar; A. Quddos; S. Zulfiqar
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 643 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0021-8995
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## Abstract Interpenetrating polymer networks (IPNs) of poly(ethylene oxide) (PEO) and a polyether substituted polysiloxane were synthesized containing variations of PEO content (35 and 65% dry network weight) and PEO systematically varied from low to high molecular weight (2,000, 8,000, and 20,000
Binding constants of alkali picrates to poly(ethylene oxide)-based networks were measured spectrophotometrically in dioxane at 25 and 40ΠC. The networks were synthesized from aliphatic tri-or tetrafunctional isocyanates and a,v-diamino-poly-(ethylene glycol)s. The slopes of the Klotz binding plots a
Poly(ethylene glycol) (PEG) with molecular weight (M n ) of 1000, 2000, 3000, and 4000 g/mol, four types of diisocyanate [hexamethylene diisocyanate (HDI), 4,4Π-dicyclohexylmethane diisocyanate (H 12 MDI), isophorone diisocyanate (IPDI), and toluene diisocyanate (TDI)], two types of comonomers [acry