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Association of amphiphilic block copolymers in dilute solution: With and without shear forces
Zahra Hosseini,Kiyumars Jalili,Sanam Rajabnia,Leila Behboodpour,Farhang Abbasi 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.72 No.-
The goal of this study is to investigate the self-assembly of block copolymers in aqueous solution and onlinedemonstration of the morphology transition of micelles under shearflow upon changing thetemperature via rheological measurements. To this end, a series of poly(ethylene glycol)-blockpolycaprolactonecopolymers with variable block ratios and degree of polymerization was synthesizedvia ring opening polymerization of e-caprolactone in the presence of methoxy poly(ethylene glycol)macroinitiator (Mn2000 g/mol), and the ensuing nanoobject assemblies were scrutinized by smallangleneutron scattering. We take advantage of solution rheology control to understand the micellartransition route of amphiphlies.