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dc.contributor.authorNegim, E S M
dc.contributor.authorNurpeissova, Zh A
dc.contributor.authorMangazbayeva, R A
dc.contributor.authorKhatib, J M
dc.contributor.authorWilliams, C
dc.contributor.authorMun, G A
dc.date.accessioned2018-07-05T09:39:35Z
dc.date.available2018-07-05T09:39:35Z
dc.date.issued2013-09
dc.identifier.citationEffect of pH on the physico-mechanical properties and miscibility of methyl cellulose/poly(acrylic acid) blends. 2014, 101:415-22 Carbohydr Polym
dc.identifier.issn1879-1344
dc.identifier.pmid24299791
dc.identifier.doi10.1016/j.carbpol.2013.09.047
dc.identifier.urihttp://hdl.handle.net/2436/621444
dc.description.abstractThe miscibility behavior and physico-mechanical properties between methyl cellulose (MC) of different molecular weights (4 × 10(4) and 8.3 × 10(4)g/mol) and poly(acrylic acid) (PAA) were studied by viscometry, differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), tensile strength and scanning electron microscopy (SEM) using water as a solvent. Various formulations were designed to investigate the effects of process variables such as pH on the physico-mechanical and miscibility properties of MC/PAA blends. The rheological features for the obtained blends are strongly dependent on the molecular weight of the MC used and pH. The viscosity measurements showed that all blends have non-Newtonian shear thinning (pseudoplastic) behavior. These blends have a single glass transition indicating that these blends are able to form a miscible phase due to the formation of hydrogen bonds between the hydroxyl group of MC and the carboxyl group of PAA. The MC/PAA blends exhibit good mechanical properties, thermal stability, characteristics of a MC-PAA polymer network. SEM of the blends showed no phase separation, when compared with the pure MC and PAA.
dc.formatapplication/PDF
dc.language.isoen
dc.publisherElsevier
dc.subjectMiscible blends
dc.subjectInterpolymer complexes
dc.subjectMethyl cellulose
dc.subjectRheology
dc.subject.meshAcrylic Resins
dc.subject.meshHydrogen-Ion Concentration
dc.subject.meshMethylcellulose
dc.subject.meshPhysical Phenomena
dc.subject.meshRheology
dc.subject.meshTensile Strength
dc.titleEffect of pH on the physico-mechanical properties and miscibility of methyl cellulose/poly(acrylic acid) blends.
dc.typeJournal article
dc.identifier.journalCarbohydrate polymers
html.description.abstractThe miscibility behavior and physico-mechanical properties between methyl cellulose (MC) of different molecular weights (4 × 10(4) and 8.3 × 10(4)g/mol) and poly(acrylic acid) (PAA) were studied by viscometry, differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), tensile strength and scanning electron microscopy (SEM) using water as a solvent. Various formulations were designed to investigate the effects of process variables such as pH on the physico-mechanical and miscibility properties of MC/PAA blends. The rheological features for the obtained blends are strongly dependent on the molecular weight of the MC used and pH. The viscosity measurements showed that all blends have non-Newtonian shear thinning (pseudoplastic) behavior. These blends have a single glass transition indicating that these blends are able to form a miscible phase due to the formation of hydrogen bonds between the hydroxyl group of MC and the carboxyl group of PAA. The MC/PAA blends exhibit good mechanical properties, thermal stability, characteristics of a MC-PAA polymer network. SEM of the blends showed no phase separation, when compared with the pure MC and PAA.


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