Matches in SemOpenAlex for { <https://semopenalex.org/work/W2149756106> ?p ?o ?g. }
Showing items 1 to 83 of
83
with 100 items per page.
- W2149756106 endingPage "1778" @default.
- W2149756106 startingPage "1767" @default.
- W2149756106 abstract "Calcium containing poly(urethane-ether)s (PUEs) were synthesized by the reaction of hexamethylene diisocyanate or toluylene 2,4-diisocyanate (HMDI or TDI) with a mixture of calcium salt of mono(hydroxybutyl)phthalate [Ca(HBP)2] and polyethylene glycol (PEG200 or PEG400). A series of calcium containing PUEs having different composition were synthesized by taking the mole ratio of Ca(HBP)2:PEG200 or PEG400:diisocyanate (HMDI or TDI) as 3:1:4, 2:2:4 and 1:3:4 to study the effect of calcium content on the properties of the copolymer. The structure of the polymers were confirmed by IR, 1H-NMR, 13C-NMR, and solid state 13C-CP-MAS NMR. The polymers were soluble in dimethyl sulfoxide and dimethyl formamide. The initial decomposition temperature of the polymers decreases with increase in calcium content. The Tg value of PUEs increases with increase in calcium content and decreases with increase in soft segment content and length. A single Tg value is observed for the calcium containing PUEs based on PEG200 shows the presence of homogeneous phase. However, two Tg values for the PUEs based on PEG400 for various composition of Ca(HBP)2, PEG400 and diisocyanate (HMDI or TDI) shows the presence of heterogeneous phase. The viscosity of the calcium containing PUEs increases with increase in the soft segment content as well as its length and decreases with increase in calcium content. X-ray diffraction patterns of the polymers show that the HMDI based polymers are partially crystalline and TDI based polymers are amorphous in nature. The dynamic mechanical analysis of the calcium containing PUEs based on HMDI shows that at any given temperature modulus (g′ and g″) increases with increase in the ionic content in the polymers." @default.
- W2149756106 created "2016-06-24" @default.
- W2149756106 creator A5038916991 @default.
- W2149756106 creator A5052369179 @default.
- W2149756106 creator A5056264549 @default.
- W2149756106 creator A5090007640 @default.
- W2149756106 date "2004-08-01" @default.
- W2149756106 modified "2023-10-16" @default.
- W2149756106 title "Synthesis and characterization of calcium containing poly(urethane-ether)s" @default.
- W2149756106 cites W1964323123 @default.
- W2149756106 cites W1968124885 @default.
- W2149756106 cites W1995827970 @default.
- W2149756106 cites W2018666822 @default.
- W2149756106 cites W2023131699 @default.
- W2149756106 cites W2028168763 @default.
- W2149756106 cites W2037118223 @default.
- W2149756106 cites W2046425697 @default.
- W2149756106 cites W2047035883 @default.
- W2149756106 cites W2052723670 @default.
- W2149756106 cites W2056486289 @default.
- W2149756106 cites W2068538866 @default.
- W2149756106 cites W2079587154 @default.
- W2149756106 cites W2083305505 @default.
- W2149756106 cites W2084211424 @default.
- W2149756106 cites W2085807269 @default.
- W2149756106 cites W2137217220 @default.
- W2149756106 cites W2467697216 @default.
- W2149756106 doi "https://doi.org/10.1016/j.eurpolymj.2004.03.007" @default.
- W2149756106 hasPublicationYear "2004" @default.
- W2149756106 type Work @default.
- W2149756106 sameAs 2149756106 @default.
- W2149756106 citedByCount "11" @default.
- W2149756106 countsByYear W21497561062012 @default.
- W2149756106 countsByYear W21497561062015 @default.
- W2149756106 countsByYear W21497561062022 @default.
- W2149756106 crossrefType "journal-article" @default.
- W2149756106 hasAuthorship W2149756106A5038916991 @default.
- W2149756106 hasAuthorship W2149756106A5052369179 @default.
- W2149756106 hasAuthorship W2149756106A5056264549 @default.
- W2149756106 hasAuthorship W2149756106A5090007640 @default.
- W2149756106 hasConcept C13965031 @default.
- W2149756106 hasConcept C178790620 @default.
- W2149756106 hasConcept C185592680 @default.
- W2149756106 hasConcept C188027245 @default.
- W2149756106 hasConcept C192562407 @default.
- W2149756106 hasConcept C2776964284 @default.
- W2149756106 hasConcept C2779438179 @default.
- W2149756106 hasConcept C2779578285 @default.
- W2149756106 hasConcept C2780407432 @default.
- W2149756106 hasConcept C519063684 @default.
- W2149756106 hasConcept C521977710 @default.
- W2149756106 hasConceptScore W2149756106C13965031 @default.
- W2149756106 hasConceptScore W2149756106C178790620 @default.
- W2149756106 hasConceptScore W2149756106C185592680 @default.
- W2149756106 hasConceptScore W2149756106C188027245 @default.
- W2149756106 hasConceptScore W2149756106C192562407 @default.
- W2149756106 hasConceptScore W2149756106C2776964284 @default.
- W2149756106 hasConceptScore W2149756106C2779438179 @default.
- W2149756106 hasConceptScore W2149756106C2779578285 @default.
- W2149756106 hasConceptScore W2149756106C2780407432 @default.
- W2149756106 hasConceptScore W2149756106C519063684 @default.
- W2149756106 hasConceptScore W2149756106C521977710 @default.
- W2149756106 hasIssue "8" @default.
- W2149756106 hasLocation W21497561061 @default.
- W2149756106 hasOpenAccess W2149756106 @default.
- W2149756106 hasPrimaryLocation W21497561061 @default.
- W2149756106 hasRelatedWork W1993045656 @default.
- W2149756106 hasRelatedWork W2004401930 @default.
- W2149756106 hasRelatedWork W2035393164 @default.
- W2149756106 hasRelatedWork W2039894722 @default.
- W2149756106 hasRelatedWork W2040753682 @default.
- W2149756106 hasRelatedWork W2080894126 @default.
- W2149756106 hasRelatedWork W2122091215 @default.
- W2149756106 hasRelatedWork W2277622009 @default.
- W2149756106 hasRelatedWork W2909245166 @default.
- W2149756106 hasRelatedWork W2969662554 @default.
- W2149756106 hasVolume "40" @default.
- W2149756106 isParatext "false" @default.
- W2149756106 isRetracted "false" @default.
- W2149756106 magId "2149756106" @default.
- W2149756106 workType "article" @default.