Hierarchical nanostructures of tunable shapes through self-aggregation of POSS end-functional polymer and poly(ionic liquid) hybrids

Dule, Madhab; Biswas, Mrinmoy; Paira, Tapas K.; Mandal, Tarun K.

doi:10.1016/j.polymer.2015.09.020

Cited by 26 publications

(16 citation statements)

References 46 publications

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“…In our system, however, nanoscale dispersed phases and aggregates are present simultaneously in PPS/Tsp‐POSS blends. Additionally, there have been few reports of the formation of uniform, spherical POSS aggregates similar to those observed in the PPS blends, and the previously reported systems typically involve the covalent attachment of POSS molecules to the polymer chain . It has been suggested that the formation of spherical POSS particles (∼500 nm to 1 μm) enhances the nanocomposite properties …”

Section: Resultsmentioning

confidence: 98%

Rheological and crystallization enhancement in polyphenylenesulfide and polyetheretherketone POSS nanocomposites

Knauer

Brust

Carr

et al. 2016

J of Applied Polymer Sci

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Polyhedral oligomeric silsesquioxane (POSS) additives have been shown to increase melt-flow and crystallization in thermoplastics. In this study, the effect of incorporation of trisilanolphenyl-POSS molecules in polyphenylenesulfide (PPS) and polyetheretherketone (PEEK) on rheology, crystallization kinetics, and thermal and mechanical properties was evaluated. Parallel plate rheometry revealed a reduction in the viscosity of PPS and PEEK with the addition of POSS. The magnitude and concentration dependence of rheological modification were shown to depend on the polymer structure and POSS solubility. Isothermal crystallization kinetics were analyzed using the Avrami model and it was found that the addition of POSS accelerated the crystallization rate of PPS blends with no significant effect on PEEK blends. Interestingly, no statistical difference in degradation temperature, tensile modulus, or tensile strength of PPS or PEEK blends was observed. The findings indicate the potential for improvements in melt viscosity and crystallization of high temperature thermoplastics with tailored POSS/polymer interactions. V C 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44462.

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Section: Resultsmentioning

confidence: 98%

Rheological and crystallization enhancement in polyphenylenesulfide and polyetheretherketone POSS nanocomposites

Knauer

Brust

Carr

et al. 2016

J of Applied Polymer Sci

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“…Consequently, Mandal and colleagues fabricated a novel semi‐telechelic hybrid POSS‐poly(1‐vinyl imidazole) (POSS‐PVim) polymer via facile radical polymerization of thiol‐functionalized POSS initiator and 1‐vinyl imidazole units. [ 105 ] Due to the strong hydrophobic interaction and aggregation tendency of POSS nanocages appended at chain end of PVim segments (Figure 10), the hybrid POSS‐based polymer self‐assembled into primary micelles. Afterwards, driven by aqueous secondary ionic interaction of highly solvated PVim layer, these primary micelles further self‐aggregated into associated micelles, which meant the formation of large interconnected aggregated nanostructure.…”

Section: Self‐assembly Of Poss‐based Hybrid Materials In Solutionsmentioning

confidence: 99%

“…Illustration of semitelechelic POSS‐PVim hybrid materials with anisotropic specific morphologies under different conditions. [ 105 ] …”

Section: Self‐assembly Of Poss‐based Hybrid Materials In Solutionsmentioning

confidence: 99%

Polyhedral Oligomeric Silsesquioxanes (POSS)‐based Hybrid Materials: Molecular Design, Solution Self‐Assembly and Biomedical Applications

Fan

Wang

2021

Chin. J. Chem.

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Owing to the tremendous advantages and unique well‐defined nanoscale structure, polyhedral oligomeric silsesquioxanes (POSS) have received considerable interest in the design of novel organic‐inorganic hybrid nanomaterials with all manner of prominent capabilities, which is recognized as a new generation of promising materials for advanced applications of material science, engineering science and biomedical fields. Benefitting from the recent progress in combination of controlled/living polymerization and emerging click chemistry, POSS‐based hybrid materials with ingenious design, versatile topological structure and sophisticated multifunctionality have been successfully fabricated and developed into abundant well‐defined hybrid nanostructures with desired physicochemical properties. Tailor‐made amphiphilic molecular design and nanosized hybrid architecture provide opportunities for the self‐assembly of POSS‐based hybrid materials with unique hierarchical morphologies in selective solvents. Through the in‐depth understanding of structure‐properties relationship, POSS‐based hybrid materials can achieve the modulation of precise control of self‐assembling process and multi‐purpose applications with improved material performances. In this review, we summarize the recent advances of POSS‐based hybrid materials in molecular design, self‐assembly behavior in solutions and potential biomedical applications with main concerns on drug delivery, gene therapy, bioimaging and tissue engineering field. Finally, future directions and remaining challenges for further advancement of POSS‐based hybrid materials are proposed and discussed.

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“…Thus, MPILs show some unique properties which not only combined that of ILs and polymer materials, but also allowed for the existence of fresh properties for a wide range of applications in separations, catalysis and electricity. The preferences of MPILs compared to the corresponding homogeneous ILs are inspired by the superiorities of easy separation and controllable structure. Theoretically, the exchange of intrinsic anions in MPILs by functional ones can bring some novel performances and constitute porous structure.…”

Section: Introductionmentioning

confidence: 99%

High Catalytic Performance of Mesoporous Dual Brønsted Acidic Ternary Poly (Ionic Liquids) for Friedel‐Crafts Alkylation

Sha

Sheng

Zhou

et al. 2019

Applied Organom Chemis

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A newfangled cross-linked dual Brønsted acidic ternary mesoporous poly (ionic liquids)(MPILs) with mesoporous structure was successfully synthesized with divinylbenzene as cross linker, 1-vinyl-3-butyl imidazole bromide and sodium p-styrene sulfonate as functional group through an ordinary postmodification method and anion exchange process. A sponge-like mesoporous tunnel structure was observed and the obtained P (BVS-SO 3 H)-SO 3 CF 3 sample appeared a relatively high thermal stability, a large surface area (up to 286.8 m 2 /g) and great pore volume (0.73 cm 3 /g). The abundant dual acidic group of sulfonic acid and trifluoromethanesulfonic acid of the composite in the polymer framework impart Brønsted acidity. For the sake of demonstrating our claims, the sample has been used as a novel solid acid catalyst for the reaction of alkylation of o-xylene with styrene to 1-diphenylethane (PXE). Under optimal reaction conditions (reaction under 120°C for 3 hr, catalyst amount was 0.5 wt% of the reaction system, and the mass ratio of o-xylene/styrene was 7.5:1, a 100% conversion of styrene and 93.7% PXE yield was acquired. After four times recycle, the yield remains 53.3%. Comparing with the commercial liquid acid catalyst, it processing a higher catalytic property and recyclability. Moreover, this fresh dual acidic heterogeneous catalyst owning a promising future applied in other acidic catalytic reactions and provide a new method to modify catalyst.

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Hierarchical nanostructures of tunable shapes through self-aggregation of POSS end-functional polymer and poly(ionic liquid) hybrids

Cited by 26 publications

References 46 publications

Rheological and crystallization enhancement in polyphenylenesulfide and polyetheretherketone POSS nanocomposites

Rheological and crystallization enhancement in polyphenylenesulfide and polyetheretherketone POSS nanocomposites

Polyhedral Oligomeric Silsesquioxanes (POSS)‐based Hybrid Materials: Molecular Design, Solution Self‐Assembly and Biomedical Applications

High Catalytic Performance of Mesoporous Dual Brønsted Acidic Ternary Poly (Ionic Liquids) for Friedel‐Crafts Alkylation

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