Enhancing thermal and mechanical properties of gelatin-based nanocomposite with aqueous dispersible multiple epoxy polyhedral oligomeric silsesquioxanes

Wang, Junchao; Zhang, Zetian; Xie, Taoling; Sun, Lijuan; Yang, Kai; Liu, Yang; Li, Zhengjun

doi:10.1007/s10853-021-05854-w

Cited by 8 publications

(4 citation statements)

References 54 publications

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“…It can be seen from the 1 H‐NMR (ppm, C 4 D 8 O) diagram that there are five characteristic peaks, which are, respectively, assigned to: 0.78 (2H, SiCH 2 ), 1.19 (2H, CCH 2 C), 2.38 (2H, CNH 2 ), 3.35 (2H, CCH 2 N), 7.02–7.65 (35H, proton of the aromatic ring). It can be seen from the 29 Si‐NMR (ppm, C 4 D 8 O) diagram that there are three characteristic peaks, which are respectively assigned to: 51.5 (Si, SiCH 2 ), 77.9 (3Si, Si[Ph]OSiCH 2 ), and 78.7 (4Si, Si[Ph]OSiPh) 29–31 . Each peak position has a good attribution, and the integral area of each peak is consistent with the theoretical value.…”

Section: Resultssupporting

confidence: 73%

“…The spectra of the samples were recorded at a wavenumber from 500 to 4000 cm À1 . The chemical structure of Ph 7 POSS-NH 2 and MP were tested 1 H and 29 Si spectra by Bruker AVANCE-600 MHz NMR spectrometer, the test solvents used were all deuterated tetrahydrofuran and chloroform. High-resolution x-ray photoelectron spectra (XPS) measurements of EP and 3% MP/EP composites using Kratos Axis Ultra DLD, the wide-scan and high-resolution (C1s, N1s, O1s, and Si2p) XPS spectra were carried out, respectively.…”

Section: Characterizationmentioning

confidence: 99%

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Novel functionalized isocyanate groups polyhedral oligomeric silsesquioxanes/epoxy composites with advanced thermal and moisture resistance properties

Jiang

et al. 2023

J of Applied Polymer Sci

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The rapid development of the electronic packaging industry has necessitated the production of epoxy resin insulation materials with high heat resistance and low water absorption. In this study a new cross‐linking composite composed of polyhedral oligomeric silsesquioxane (POSS) functionalized with isocyanate groups and epoxy resin (EP) containing phenolic hydroxyl groups. By employing an isocyanate‐hydroxyl process, the cage structure of Ph7POSS with isocyanate functionalization (MP) can be suspended on EP, leading to a significant improvement in the thermal and moisture resistance of the MP/EP composite. Our DSC and TGA studies revealed that the addition of 3% MP to the epoxy resin increased the glass transition temperature by 27.1°C and raised the initial thermal breakdown temperature to 334.5°C. We also utilized a novel quartz crystal microbalance (QCM) technique to continuously monitor the moisture resistance of the composite, and our results showed that the composite absorbed only 0.03% of water. Moreover, the porosity and cross‐linking of the POSS molecules further restricted the movement of the polymer chains, thereby reducing the dielectric constant and dielectric loss of the composite. Consequently, the MP‐modified epoxy composites exhibit excellent properties, which suggest promising applications in the field of electronic packaging.

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Section: Resultssupporting

confidence: 73%

Section: Characterizationmentioning

confidence: 99%

Novel functionalized isocyanate groups polyhedral oligomeric silsesquioxanes/epoxy composites with advanced thermal and moisture resistance properties

Jiang

et al. 2023

J of Applied Polymer Sci

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“…The resulting biomaterials may affect angiogenesis in bone defect repair, improve the adhesion of stem cells and proteins, and release growth factors, thereby promoting vascularization and hard tissue regeneration [ 35 ]. For instance, Z. Li et al [ 36 ] studied the influence of cage-like silsesquioxanes on gelatin-based composite features using 3-glycidyloxypropyl-POSS (G-POSS) with various epoxy groups. In the next step, the resulting G-POSS was modified by polyetheramine (PEA) to achieve better solubility in aqueous media.…”

Section: Selected Biomaterials Based On Cage-like Silsesquioxanesmentioning

confidence: 99%

A Brief Review on Selected Applications of Hybrid Materials Based on Functionalized Cage-like Silsesquioxanes

John

Ejfler

2023

Polymers

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Rapid developments in materials engineering are accompanied by the equally rapid development of new technologies, which are now increasingly used in various branches of our life. The current research trend concerns the development of methods for obtaining new materials engineering systems and searching for relationships between the structure and physicochemical properties. A recent increase in the demand for well-defined and thermally stable systems has highlighted the importance of polyhedral oligomeric silsesquioxane (POSS) and double-decker silsesquioxane (DDSQ) architectures. This short review focuses on these two groups of silsesquioxane-based materials and their selected applications. This fascinating field of hybrid species has attracted considerable attention due to their daily applications with unique capabilities and their great potential, among others, in biomaterials as components of hydrogel networks, components in biofabrication techniques, and promising building blocks of DDSQ-based biohybrids. Moreover, they constitute attractive systems applied in materials engineering, including flame retardant nanocomposites and components of the heterogeneous Ziegler-Natta-type catalytic system.

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“…Ma et al obtained the GMA-POSS monomer via ring-opening reaction which was used for emulsion polymerization with the copolymer of polymethylmethacrylate to produce a new composite under 100nm particles as film structure [11]. Most recently, multiple epoxy-functional POSS groups incorporated with gelatine were synthesized by a complete hydrolysis and condensation method as a porous matrix [12].…”

Section: Introductionmentioning

confidence: 99%

Epoxy Functional Porous POSS Microparticle Synthesis

Kibar

2022

Hacettepe Journal of Biology and Chemistry

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Epoxy-functional porous polyhedral oligomeric silsesquioxane (POSS) microparticles were synthesized by templated polymerization in two-steps by using monodisperse 2µm poly(GMA) seed latex particles as a template. In the first step, templated polymer latex was swollen in emulsion medium to obtain micron size porous POSS particles. In the second step, the hydrophobic monomers metharcyl-POSS, epoxy-functional monomer glycidyl methacrylate (GMA), the crosslinking agent GDMA and the thermal imitator diffused into the swollen template in emulsion medium for free-radical polymerization. The resultant poly(POSS-co-GDMA-co-GMA) microparticles were obtained in polydisperse form due to the high molecular weight of the silica cage core of POSS created difficulty in the diffusion step. However; monodisperse composite microparticles were obtained around 5.8 ± 0.4µm in size via centrifugal post-separation. The spherical fine porous hybrid structure was fully characterized as morphological, thermal, chemical composition, and crystalline form by SEM, TGA, FTIR, and XRD respectively.

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Enhancing thermal and mechanical properties of gelatin-based nanocomposite with aqueous dispersible multiple epoxy polyhedral oligomeric silsesquioxanes

Cited by 8 publications

References 54 publications

Novel functionalized isocyanate groups polyhedral oligomeric silsesquioxanes/epoxy composites with advanced thermal and moisture resistance properties

Novel functionalized isocyanate groups polyhedral oligomeric silsesquioxanes/epoxy composites with advanced thermal and moisture resistance properties

A Brief Review on Selected Applications of Hybrid Materials Based on Functionalized Cage-like Silsesquioxanes

Epoxy Functional Porous POSS Microparticle Synthesis

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