Synthesis of porphyrinic polystyrenes and their self-assembly with pristine fullerene (C60)

Nawaz, Mian Hasnain; Liu, Jin; Liu, Feng; Wang, Xiaosong

doi:10.1016/j.matlet.2012.09.053

Cited by 14 publications

(5 citation statements)

References 33 publications

(39 reference statements)

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“…1), it should be noted that they are quite different than the spherical structures obtained from 4-arm PS porphyrin and pristine C 60 , in our previous work. 8 In present case, the presence of PS and PEO segments, is likely the driving force for such fibril morphology, due to their mutual segregation. The fibrils are flexible enough to mingle together due to the fusion of PS and PEO chains with each other, 24,26 such fusion/mingling of polymers ensures the fibril tenacity and could further results in the formation of apparently coiled and ring like aggregates.…”

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confidence: 69%

“…Recently, we reported the synthesis and self-assembly of four-arm porphyrinic polystyrene, where polymeric porphyrin gave tuneable spherical aggregates with pristine C 60 . 8 In addition, a great number of hybrid materials of porphyrin with dendrimers, cyclodextrins, carbon nanotubes, surfactants, ionic liquids, polypeptides, graphene, and fullerenes have been studied. 1,6,9,10 Among them, porphyrin-fullerene (P-F) as donoracceptor (D-A) systems have been extensively studied because of their small recognition energy, versatility in properties and applications, 11,12 however, limited solubility profile of both adducts is a big problem for their applications.…”

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confidence: 99%

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Continuous fibrils from the self-assembly of monochelic polymeric porphyrin and PEGylated fullerene

Nawaz

Liu

2013

RSC Adv.

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confidence: 69%

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confidence: 99%

Continuous fibrils from the self-assembly of monochelic polymeric porphyrin and PEGylated fullerene

Nawaz

Liu

2013

RSC Adv.

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“…Polymeric tails attached covalently with the porphyrin and fullerene molecules showed dramatic effects on the morphology of the assembled architecture and their applications. Previously, we found the decisive role of the number of polymeric arms in the morphology and optical properties of the self‐assembled spheres and fibrils. The four‐armed polymeric porphyrins, on complexing with pristine fullerene (C 60 ), gave uniform nanospheres, whereas the one‐armed polymeric porphyrins gave spherical and fibril aggregates, depending on the nature of the fullerene and on the simple and dropwise mixing of the porphyrinic and fullerenic solutions, respectively.…”

Section: Resultsmentioning

confidence: 95%

Sonication‐induced self‐assembly of polymeric porphyrin–fullerene: Formation of nanorings

Riaz

Wang

Khan

et al. 2016

J of Applied Polymer Sci

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In this article, we detail the sonication‐induced self‐assembly of polymeric porphyrin and fullerenes into distinct nanorings in solution form. The formation of these trenchant superstructures was the result of the delicate choice of different assembly protocols, solvents, and polymeric tails associated with porphyrin and fullerene. In this study, the sonication supposedly directed the lateral aggregation into uniform ring formation. The sonication time was found to be the key parameter in ring formation. Furthermore, the flexibility of polymeric arms and electronic interactions of porphyrin–fullerene gave rise to synergistically enhanced molecular interactions, and this resulted in discrete morphologies. Key optical data, including the absorption maxima of the complexes, and microscopic studies attested to the nature and morphology of the self‐assembled complexes. This introduction of polymeric arms and sonication protocols in the porphyrin self‐assembly was expected to allow the easy formation of diverse morphologies. Because of the facile fabrication process and uniform morphology, the resulting composite architectures might show promising applications in drug‐delivery and advance materials. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43537.

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“…The functional species include cyclodextrins (CDs), cucurbiturils (CBs), calixarene, fullerene, polymers and metal nanoparticles. 36,[44][45][46] Biopolymers such as proteins and polypeptides have also been widely recruited as porphyrinic precursorforming agents. 47 The key advantage of this principle is that the functions of multiple components can be integrated and enhanced in one assembly.…”

Section: Straightforward Self-assembly Of Porphyrins and Polymersmentioning

confidence: 99%

Cooperative self-assembly of porphyrins with polymers possessing bioactive functions

Zhao

et al. 2016

Chem. Commun.

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Natural porphyrin derivatives possess many interesting functions in biological systems. They are integrated into proteins that are essential for biological activities. Many efforts have been dedicated to mimic the microenvironment and augment the function of porphyrin/protein scaffolds. To achieve such goals, self-assembly has become one of the popular methods to construct porphyrin/protein-mimicking materials owing to its various choices of building blocks and a simple preparation process over chemical modification. Desirable characteristics of building blocks for protein mimicking include high molecular weight, predictable conformations in solution, and appropriate functional residuals. With these aims in mind, polymers are ideal candidates due to their multiple-level hierarchies derived from their chemical and spatial structures. In this review, design strategies for the cooperative self-assembly of porphyrins with polymers and the main efforts towards the implementation of porphyrin/polymer assembly for biomimetic composites with bioactive functions will be addressed.

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Synthesis of porphyrinic polystyrenes and their self-assembly with pristine fullerene (C60)

Cited by 14 publications

References 33 publications

Continuous fibrils from the self-assembly of monochelic polymeric porphyrin and PEGylated fullerene

Continuous fibrils from the self-assembly of monochelic polymeric porphyrin and PEGylated fullerene

Sonication‐induced self‐assembly of polymeric porphyrin–fullerene: Formation of nanorings

Cooperative self-assembly of porphyrins with polymers possessing bioactive functions

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