Cylindrical micelles from the living crystallization-driven self-assembly of poly(lactide)-containing block copolymers

Petzetakis, Nikos; Dove, Andrew P.; O’Reilly, Rachel K.

doi:10.1039/c0sc00596g

Cited by 316 publications

(346 citation statements)

References 49 publications

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“…The seeded growth process is likely to be extendable to a wide range of crystallizable polymers, including -conjugated and biodegradable materials, 19,23 and allows precise control of dimensions and access to hierarchical 2D segmented comicelles and also other complex architectures. The resulting shaped 2D platelets possess a lipophilic charged surface and offer potential applications as carriers for nanoparticles, biomolecules, and therapeutic agents, as liquid crystals and adhesives, and in composite reinforcement.…”

Section: Discussionmentioning

confidence: 99%

“…Seeded-growth of crystallizable BCPs from 1D cylindrical seeds prepared by sonication of long, polydisperse cylinders with a crystalline core provides a recently established route to low dispersity cylindrical micelles of controlled length [18][19][20] and also complex architectures such as block comicelles, [21][22][23] branched cylindrical micelles, 24 and multi-armed micelles. 25 The key to this approach is that the core termini of the seeds remain active to the addition of further BCP unimer, leading to a process that is analogous to a living covalent polymerization of molecular monomers.…”

Section: Seeded Growth Of Pfs Homopolymers With Charged End-groups Usmentioning

confidence: 99%

“…19,38,39 Two homopolymers with phosphonium groups at a chain terminus were prepared, PLLA24 Fig. 26).…”

Section: Concept Extension To Polylactide Homopolymersmentioning

confidence: 99%

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Two-dimensional assemblies from crystallizable homopolymers with charged termini

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Section: Discussionmentioning

confidence: 99%

Section: Seeded Growth Of Pfs Homopolymers With Charged End-groups Usmentioning

confidence: 99%

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Two-dimensional assemblies from crystallizable homopolymers with charged termini

et al. 2017

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“…Many BCPs consisting of a long soluble block attached to a shorter crystallizable block 21 are potential candidates for this approach. While CDSA has been reported for BCPs with poly (3-hexylthiophene) 22 , polylactide 23 , polycaprolactone 24 and polyethylene 25 as the crystallizable block, one has the greatest control over this kind of seeded growth for polyferrocenylsilane (PFS) BCPs. Under appropriately chosen self-assembly conditions, all of the added unimer of a PFS BCP grow off the ends of the crystallite seeds in the sample, and uniform elongated structures can be formed [26][27][28][29][30][31] .…”

mentioning

confidence: 99%

A design strategy for the hierarchical fabrication of colloidal hybrid mesostructures

et al. 2014

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Advances in nanotechnology depend upon expanding the ability to create new and complex materials with well-defined multidimensional mesoscale structures. The creation of hybrid hierarchical structures by combining colloidal organic and inorganic building blocks remains a challenge due to the difficulty in preparing organic structural units of precise size and shape. Here we describe a design strategy to generate controlled hierarchical organic-inorganic hybrid architectures by multistep bottom-up self-assembly. Starting with a suspension of large inorganic nanoparticles, we anchor uniform block copolymer crystallites onto the nanoparticle surface. These colloidally stable multi-component particles can initiate the living growth of uniform cylindrical micelles from their surface, leading to three-dimensional architectures. Structures of greater complexity can be obtained by extending the micelles via addition of a second core-crystalline block copolymer. This controlled growth of polymer micelles from the surface of inorganic particles opens the door to the construction of previously inaccessible colloidal organic-inorganic hybrid structures.

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“…Furthermore, block co-micelles with segmented structures are formed when different unimers are added sequentially to pre-existing seed initiators. CDSA phenomena have recently been reported for a wide variety of BCPs with different crystallizable core blocks [25][26][27] , and analogous processes have been used to form supramolecular heterojunctions from crystallizable hexabenzocoronene small molecules 28 .…”

mentioning

confidence: 99%

Colour-tunable fluorescent multiblock micelles

et al. 2014

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Emerging strategies based on the self-assembly of block copolymers have recently enabled the bottom-up fabrication of nanostructured materials with spatially distinct functional regions. Concurrently, a drive for further miniaturization in applications such as optics, electronics and diagnostic technology has led to intense interest in nanomaterials with well-defined patterns of emission colour. Using a series of fluorescent block copolymers and the crystallization-driven living self-assembly approach, we herein describe the synthesis of multicompartment micelles in which the emission of each segment can be controlled to produce colours throughout the visible spectrum. This represents a bottom-up synthetic route to objects analogous to nanoscale pixels, into which complex patterns may be written. Because of their small size and high density of encoded information, these findings could lead to the development of new materials for applications in, for example, biological diagnostics, miniaturized display technology and the preparation of encoded nanomaterials with high data density.

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Cylindrical micelles from the living crystallization-driven self-assembly of poly(lactide)-containing block copolymers

Cited by 316 publications

References 49 publications

Two-dimensional assemblies from crystallizable homopolymers with charged termini

Two-dimensional assemblies from crystallizable homopolymers with charged termini

A design strategy for the hierarchical fabrication of colloidal hybrid mesostructures

Colour-tunable fluorescent multiblock micelles

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