Abstract
Symmetric and highly asymmetric polystyrene-block-polyisoprene-block-polystyrene (SIS triblock) copolymers were synthesized via sequential anionic polymerization using difunctional initiator, and symmetric and highly asymmetric polystyrene-block-polyisoprene (SI diblock) copolymers were also synthesized using monofunctional initiator. The molecular weight of the triblock copolymer was approximately twice that of the diblock copolymer. The phase transition temperatures of the SIS triblock and SI diblock copolymers were determined using oscillatory shear rheometry and small-angle X-ray scattering (SAXS), respectively. It has been found that the sample preparation methods (solvent casting vs compression molding) and annealing conditions employed have a profound influence on the “apparent” phase transition temperatures of the highly asymmetric block copolymers that undergo order−disorder transition (ODT) involving lattice disordering/ordering transition (LDOT) followed by the demicellization/micellization tra...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
