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Article: Effect of mixing protocol on compatibilized polymer blend morphology

TitleEffect of mixing protocol on compatibilized polymer blend morphology
Authors
KeywordsBlock Copolymers
Micelles
Molecular Weight
Organic Polymers
Particle Size Analysis
Polymethyl Methacrylates
Issue Date2006
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.4spe.org/periodicals/journals/pes.htm
Citation
Polymer Engineering and Science, 2006, v. 46 n. 5, p. 691-702 How to Cite?
AbstractWe investigated the effect of mixing protocol on the morphology of compatibilized polymer blends made with premade compatibilizer and reactively formed in-situ compatibilizer in a custom-built miniature mixer Alberta Polymer Asymmetric Minimixer (APAM). The compatibilized blends show a finer morphology than uncompatibilized blends if the polymers are mixed together in the dry state and then fed into the mixer. It is found that premelting one polymer, and premixing polymers and compatibilizer, both greatly affect the compatibilized blends' morphology. The effects are complex since the dispersed phase particle size and distribution of the compatibilized blends may be smaller or larger when compared with the uncompatibilized system, depending on the material's physical and chemical properties; for example, diblock molecular weight or the preference of copolymer to migrate to a particular phase can change the final morphology. Good mobility of the copolymer to reach the interface is crucial to obtain a finer morphology. Micelles are observed when a high molecular weight diblock copolymer P(S-b-MMA) is used for a PS/PMMA blend. Because of its enhanced mobility, no micelles are found for a low molecular weight diblock copolymer P(S-b-MMA) in a PS/PMMA blend. For PS/PE/P(S-b-E) blends, finer morphology is obtained when P(S-/b-E) is first precompounded with PS. Because the block copolymer prefers the PE phase, if the P(S-b-E) block copolymer is compounded with PE first, some remains inside the PE phase and does not compatibilize the interface. In the case of reactive blend PSOX/PEMA, premelting and holding the polymers at high temperature for 5 min decreases final dispersed phase particle size; however, premelting and holding for 10 min coarsens the morphology. © 2006 Society of Plastics Engineers.
Persistent Identifierhttp://hdl.handle.net/10722/91109
ISSN
2015 Impact Factor: 1.719
2015 SCImago Journal Rankings: 0.560
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLin, Ben_HK
dc.contributor.authorSundararaj, Uen_HK
dc.contributor.authorGuegan, Pen_HK
dc.date.accessioned2010-09-17T10:13:10Z-
dc.date.available2010-09-17T10:13:10Z-
dc.date.issued2006en_HK
dc.identifier.citationPolymer Engineering and Science, 2006, v. 46 n. 5, p. 691-702en_HK
dc.identifier.issn0032-3888en_HK
dc.identifier.urihttp://hdl.handle.net/10722/91109-
dc.description.abstractWe investigated the effect of mixing protocol on the morphology of compatibilized polymer blends made with premade compatibilizer and reactively formed in-situ compatibilizer in a custom-built miniature mixer Alberta Polymer Asymmetric Minimixer (APAM). The compatibilized blends show a finer morphology than uncompatibilized blends if the polymers are mixed together in the dry state and then fed into the mixer. It is found that premelting one polymer, and premixing polymers and compatibilizer, both greatly affect the compatibilized blends' morphology. The effects are complex since the dispersed phase particle size and distribution of the compatibilized blends may be smaller or larger when compared with the uncompatibilized system, depending on the material's physical and chemical properties; for example, diblock molecular weight or the preference of copolymer to migrate to a particular phase can change the final morphology. Good mobility of the copolymer to reach the interface is crucial to obtain a finer morphology. Micelles are observed when a high molecular weight diblock copolymer P(S-b-MMA) is used for a PS/PMMA blend. Because of its enhanced mobility, no micelles are found for a low molecular weight diblock copolymer P(S-b-MMA) in a PS/PMMA blend. For PS/PE/P(S-b-E) blends, finer morphology is obtained when P(S-/b-E) is first precompounded with PS. Because the block copolymer prefers the PE phase, if the P(S-b-E) block copolymer is compounded with PE first, some remains inside the PE phase and does not compatibilize the interface. In the case of reactive blend PSOX/PEMA, premelting and holding the polymers at high temperature for 5 min decreases final dispersed phase particle size; however, premelting and holding for 10 min coarsens the morphology. © 2006 Society of Plastics Engineers.en_HK
dc.languageengen_HK
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.4spe.org/periodicals/journals/pes.htmen_HK
dc.relation.ispartofPolymer Engineering and Scienceen_HK
dc.subjectBlock Copolymersen_HK
dc.subjectMicellesen_HK
dc.subjectMolecular Weighten_HK
dc.subjectOrganic Polymersen_HK
dc.subjectParticle Size Analysisen_HK
dc.subjectPolymethyl Methacrylatesen_HK
dc.titleEffect of mixing protocol on compatibilized polymer blend morphologyen_HK
dc.typeArticleen_HK
dc.identifier.emailLin, B:blin@hku.hken_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/pen.20555en_HK
dc.identifier.scopuseid_2-s2.0-33646684740en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33646684740&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume46en_HK
dc.identifier.issue5en_HK
dc.identifier.spage691en_HK
dc.identifier.epage702en_HK
dc.identifier.eissn1548-2634-
dc.identifier.isiWOS:000237200200016-

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