Multifunctional materials based on polysilsesquioxanes

Dong, Feihong; Ha, Chang‐Sik

doi:10.1007/s13233-012-0151-x

Cited by 36 publications

(26 citation statements)

References 109 publications

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“…1 7,13 ]-octasiloxane-1-yl)propyl methacrylate (MAPOSS) was purchased from Hybrid Plastics (product no. MA0702, Methacrylisobutyl-POSS) and used as received.…”

Section: Methodsmentioning

confidence: 99%

“…4 POSS can be easily incorporated into polymeric matrix via copolymerization, cross linking, grafting, or physical blending 5,6 to improve properties such as thermal and mechanical property, oxidation resistance, and reduced flammability due to its filler effect. 7,8 The incorporated POSS molecule generally increases the glass transition temperature (T g ) of host polymers by adjusting the free volume due to its side chains. 9,10 On the other hand, polyisobutylene (PIB) based materials have drawn considerable attention in recent years due to the unique and inherent properties of PIB, such as outstanding thermal and oxidative stability, chemical resistance, excellent damping and barrier property.…”

Section: Introductionmentioning

confidence: 99%

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Polyisobutylene containing organic/inorganic hybrid block copolymers and their crystalline behavior

Haldar

Bauri

et al. 2015

J. Polym. Sci. Part A: Polym. Chem.

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Block copolymer comprising of polyisobutylene (PIB) soft segment and poly(3‐(3,5,7,9,11,13,15‐heptaisobutyl‐pentacyclo[9.5.1.13,9.15,15.17,13]‐octasiloxane‐1‐yl)propyl methacrylate) (PMAPOSS) hard segment was synthesized by combination of living carbocationic and reversible addition‐fragmentation chain transfer (RAFT) polymerizations. Block copolymers were characterized by 1H and 29Si NMR spectroscopy, FT‐IR study, energy dispersive X‐ray spectroscopy (EDX), and gel permeation chromatography (GPC). The EDX, combined with scanning electron microscopy (SEM) was employed for determination of elemental composition. Thermal transition and degradation behaviors were confirmed by differential scanning calorimetry (DSC) and thermo gravimetric analysis (TGA), respectively. Although both the PIB and MAPOSS homopolymers are amorphous in nature, in their block copolymers the PMAPOSS domain showed crystalline behavior, as confirmed from wide‐angle X‐ray scattering (WAXS) technique, DSC studies and polarized optical microscopy (POM). Interestingly, crystalline melting temperatures (Tm) can be tuned by changing the PIB to PMAPOSS block length ratios. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2015, 53, 1125–1133

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“…1 7,13 ]-octasiloxane-1-yl)propyl methacrylate (MAPOSS) was purchased from Hybrid Plastics (product no. MA0702, Methacrylisobutyl-POSS) and used as received.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Polyisobutylene containing organic/inorganic hybrid block copolymers and their crystalline behavior

Haldar

Bauri

et al. 2015

J. Polym. Sci. Part A: Polym. Chem.

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“…Due to their interesting physiochemical properties [1] LPSQs have been attracting a growing interest since their synthesis was announced for the first time by Brown et al in 1960 [2]. Exhibiting many excellent properties, such as outstanding thermooxidative and photochemical stability, low flammability, excellent dielectric properties and mechanical stability, ladder-like polysilsesquioxanes can be applied as protective M. Nowacka ( ) · A. Kowalewska · K. Gadzinowska Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland e-mail: mnowacka@cbmm.lodz.pl coatings, insulating layers, aerospace materials and precursors of ceramics, photoresists etc.…”

Section: Introductionmentioning

confidence: 99%

“…Exhibiting many excellent properties, such as outstanding thermooxidative and photochemical stability, low flammability, excellent dielectric properties and mechanical stability, ladder-like polysilsesquioxanes can be applied as protective M. Nowacka ( ) · A. Kowalewska · K. Gadzinowska Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland e-mail: mnowacka@cbmm.lodz.pl coatings, insulating layers, aerospace materials and precursors of ceramics, photoresists etc. [1,3]. In addition, LPSQs (even those of high molecular weight) are well soluble in organic solvents.…”

Section: Introductionmentioning

confidence: 99%

Alkali-Metal-Directed Hydrolytic Condensation of 3-Mercaptopropyltrimethoxysilane

Nowacka

Kowalewska

Gadzinowska

2014

Silicon

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A series of solid sodium and potassium cyclotetrasiloxanolates was synthetized with high yields by hydrolytic condensation of 3-mercaptopropyltrimethoxysilane in the presence of potassium or sodium hydroxide. The obtained materials were characterized using solid state 29 Si and 13 C NMR, wide angle X-ray scattering (WAXS), elemental analysis, Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The influence of reaction conditions on the structure and physiochemical properties of the obtained products was studied.

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“…[ 7 ] However, these building elements are fixed, making it difficult to further modulate the structure and provide stimuli responsiveness. Supramolecular chemistry provides an alternative fabrication strategy that addresses the construction challenges of multifunctional materials through multiple noncovalent interactions to generate controllable and stimuli-responsive structures.…”

mentioning

confidence: 99%

Fabrication of Multiresponsive Bioactive Nanocapsules through Orthogonal Self‐Assembly

et al. 2014

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Multifunctional self-assembled systems present platforms for fundamental research and practical applications, providing tunability of structure, functionality and stimuli response. Pragmatic structures for biological applications have multiple design requirements, including control of size, stability and environmental response. Here we present the fabrication of multifunctional nanoparticle-stabilized capsules (NPSCs) using a set of orthogonal supramolecular interactions. In these capsules, fluorescent proteins are attached to quantum dots through polyhistidine coordination. These anionic assemblies interact laterally with cationic gold nanoparticles that are anchored to the fatty acid core through guanidinium-carboxylate interactions. The lipophilic core then provides a reservoir for hydrophobic endosome-disrupting agents, generating a system featuring stimuli-responsive payload release into the cytosol with fluorescent monitoring.

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Multifunctional materials based on polysilsesquioxanes

Cited by 36 publications

References 109 publications

Polyisobutylene containing organic/inorganic hybrid block copolymers and their crystalline behavior

Polyisobutylene containing organic/inorganic hybrid block copolymers and their crystalline behavior

Alkali-Metal-Directed Hydrolytic Condensation of 3-Mercaptopropyltrimethoxysilane

Fabrication of Multiresponsive Bioactive Nanocapsules through Orthogonal Self‐Assembly

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