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Cylindrical micelles by the self-assembly of crystalline-b-coil polyphosphazene-b-P2VP block copolymers. Stabilization of gold nanoparticles

dc.contributor.authorCortes M.D.L.A.
dc.contributor.authorDe La Campa R.
dc.contributor.authorValenzuela M.L.
dc.contributor.authorDíaz C.
dc.contributor.authorCarriedo G.A.
dc.contributor.authorSoto A.P.
dc.date.accessioned2020-09-02T22:15:31Z
dc.date.available2020-09-02T22:15:31Z
dc.date.issued2019
dc.identifier10.3390/molecules24091772
dc.identifier.citation24, 9, -
dc.identifier.issn14203049
dc.identifier.urihttps://hdl.handle.net/20.500.12728/4088
dc.descriptionDuring the last number of years a variety of crystallization-driven self-assembly (CDSA) processes based on semicrystalline block copolymers have been developed to prepare a number of different nanomorphologies in solution (micelles). We herein present a convenient synthetic methodology combining: (i) The anionic polymerization of 2-vinylpyridine initiated by organolithium functionalized phosphane initiators; (ii) the cationic polymerization of iminophosphoranes initiated by -PR2Cl2; and (iii) a macromolecular nucleophilic substitution step, to prepare the novel block copolymers poly(bistrifluoroethoxy phosphazene)-b-poly(2-vinylpyridine) (PTFEP-b-P2VP), having semicrystalline PTFEP core forming blocks. The self-assembly of these materials in mixtures of THF (tetrahydrofuran) and 2-propanol (selective solvent to P2VP), lead to a variety of cylindrical micelles of different lengths depending on the amount of 2-propanol added. We demonstrated that the crystallization of the PTFEP at the core of the micelles is the main factor controlling the self-assembly processes. The presence of pyridinyl moieties at the corona of the micelles was exploited to stabilize gold nanoparticles (AuNPs). © 2019 by the Authors.
dc.language.isoen
dc.publisherMDPI AG
dc.subjectBlock copolymers
dc.subjectCrystallization-driven self-assembly
dc.subjectCylindrical micelles
dc.subjectGold nanoparticles
dc.subjectMicelles
dc.subjectP2VP
dc.subjectPolyphosphazene
dc.subjectSelf-assembly
dc.subjectgold
dc.subjectmetal nanoparticle
dc.subjectorganophosphorus compound
dc.subjectpoly(2-vinylpyridine)
dc.subjectpoly(bis(trifluoroethoxy)phosphazene)
dc.subjectpoly(phosphazene)
dc.subjectpolymer
dc.subjectpolyvinyl derivative
dc.subjectsolvent
dc.subjectchemistry
dc.subjectcrystallization
dc.subjectmacromolecule
dc.subjectmicelle
dc.subjectparticle size
dc.subjectpolymerization
dc.subjectsynthesis
dc.subjectCrystallization
dc.subjectGold
dc.subjectMacromolecular Substances
dc.subjectMetal Nanoparticles
dc.subjectMicelles
dc.subjectOrganophosphorus Compounds
dc.subjectParticle Size
dc.subjectPolymerization
dc.subjectPolymers
dc.subjectPolyvinyls
dc.subjectSolvents
dc.titleCylindrical micelles by the self-assembly of crystalline-b-coil polyphosphazene-b-P2VP block copolymers. Stabilization of gold nanoparticles
dc.typeArticle


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