Transition metal complex induced morphology change in an ABC-triblock copolymer

Bronstein, L. M.; Seregina, M. V.; Valetsky, Pyotr M.; Breiner, U.; Abetz, Volker; Stadler, Reimund

doi:10.1007/s002890050160

Cited by 25 publications

(20 citation statements)

References 28 publications

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“…and gyroidal structures. This was explained by the introduction of an asymmetric interfacial tension introduced by the post modification of the block copolymer rather than a significant change of the effective volume fraction of the middle block [61]. The perforated lamella in the present case is peculiar, because it is sandwiched between two other lamellae, which suggests a large interface between PS/P(4VP/5PAP) and PT/P(4VP/5PAP).…”

Section: Resultsmentioning

confidence: 78%

Controlling the shape of Janus nanostructures through supramolecular modification of ABC terpolymer bulk morphologies

Hiekkataipale

Löbling

Poutanen

et al. 2016

Polymer

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of the original manuscript:Hiekkataipale, P.; Loebling, T.I.; Poutanen, M.; Priimagi, A.; Abetz, V.; Ikkala, O.; Groeschel, A.H.: Controlling the shape of Janus nanostructures through supramolecular modification of ABC terpolymer bulk morphologies In: Polymer (2016 Abstract: Block copolymers microphase separate into a variety of bulk morphologies that serve as scaffolds, templates, masks and source for polymeric nano-particles. While supramolecular additives are common to complex within diblock copolymers to modify the morphology, the subtle effects of complexation on ABC triblock terpolymer morphologies are less explored. Here, we describe the manipulation of polystyrene-block-poly(4-vinylpyridine)-blockpoly(tert-butyl methacrylate) (PS-b-P4VP-b-PT or S4VT) triblock terpolymer bulk morphologies through supramolecular complexation with rod-like 4-(4-pentylphenylazo)phenol (5PAP).The 5PAP molecule hydrogen bonds by phenolic groups to the 4VP repeating units and with increasing molar fraction of 5PAP, initially observed P4VP cylinders flatten into elliptic cylinders until a morphological transition occurs into a third (P4VP/5PAP) lamella. At sufficient 5PAP loadings, the cylinders can even merge into a perforated P4VP lamella located at the PS/PT interface. Quaternization of the P4VP phase and re-dispersion in organic solvent allows liberating S4VT Janus nanostructures from the bulk, including Janus cylinders, nanoporous Janus membranes and Janus sheets. The manipulation of "sandwiched" microphases through supramolecular binding motifs could allow the preparation of previously inaccessible terpolymer bulk morphologies and, in case of cross-linkable phases, lead to a larger library of Janus nano-objects.

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Section: Resultsmentioning

confidence: 78%

Controlling the shape of Janus nanostructures through supramolecular modification of ABC terpolymer bulk morphologies

Hiekkataipale

Löbling

Poutanen

et al. 2016

Polymer

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“…It is important to note that the non-hydrogenated analogue S 35 B 27 M 38 122 shows a slightly undulated (ll) rather than the (kp) morphology 39,40) . Morphological transitions induced by chemical modification of the B block in SBM triblock copolymers are due to changes of the interfacial tension between the middle and the endblocks and have been also observed in other systems 12,99) . Fig.…”

Section: Blends Of Different Abc Triblock Copolymersmentioning

confidence: 70%

Formation of superlattices via blending of block copolymers

Abetz

Goldacker

2000

Macromol. Rapid Commun.

191

182

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“…They also controlled the amount of silver NPs into the P2VP domains of PS-b-P2VP block copolymers by changing the amount of silver nitrate in the feed (Saito & Ishizu, 1995). (Bronstein et al, 1997). Only a small part of the vinyl double bonds on P2VP domain has been complexed with Pd, while most of the double bonds are reacted with the Fe complex.…”

Section: Approaches For Controllingthe Nanoparticle Distribution Withmentioning

confidence: 99%

A Strategy to Decorate the Surface of NPs and Control their Locations within Block Copolymer Templates

Yoo¹,

Bang²,

Paek³

et al. 2011

Advances in Diverse Industrial Applications of Nanocomposites

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Transition metal complex induced morphology change in an ABC-triblock copolymer

Cited by 25 publications

References 28 publications

Controlling the shape of Janus nanostructures through supramolecular modification of ABC terpolymer bulk morphologies

Controlling the shape of Janus nanostructures through supramolecular modification of ABC terpolymer bulk morphologies

Formation of superlattices via blending of block copolymers

A Strategy to Decorate the Surface of NPs and Control their Locations within Block Copolymer Templates

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