Synthesis of Janus POSS star polymer and exploring its compatibilization behavior for PLLA/PCL polymer blends

Han, Di; Wen, Tian-jiao; Han, Ge; Deng, Yiyi; Deng, Yan; Zhang, Qin; Fu, Qiang

doi:10.1016/j.polymer.2017.12.050

Cited by 50 publications

(27 citation statements)

References 48 publications

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“…Polyhedral oligomeric silsesquioxanes (POSS) are novel hybrid materials that have three‐dimensional inorganic–organic, structurally well‐defined cage‐like molecules and the sizes range from 1 to 3 nm, with the empirical formula RSiO 1.5 (where R may be a hydrogen atom or an organic functional group, for example, alkyl, alkylene, acrylate, hydroxyl, or epoxide unit). As a result of advantageous properties created by the possibility of incorporation of variety of reactive functional groups into their molecule, POSS have a wide range of applications, including modification of both thermoplastic and thermoset polymeric materials by chemical cross‐linking or physical blending methods .…”

Section: Introductionmentioning

confidence: 99%

“…Generally, mechanical strength and thermal resistance are improved, which to a large extent are related to increase in the density of the polymer network due to addition of POSS . Moreover, the reinforcement effect of these modifiers significantly depends not only on the presence of certain functionalities in the components, but also on the possible interactions between them .…”

Section: Introductionmentioning

confidence: 99%

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Effect of Polyhedral Oligomeric Silsesquioxanes Nanoparticles on Thermal and Mechanical Properties of Poly(vinyl chloride) Composite Materials

Tomaszewska

Sterzyński

Skórczewska

2018

Vinyl Additive Technology

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The modification of poly(vinyl chloride) (PVC) by polyhedral silsesquioxane containing both methacryl and octyl groups (MeOctPOSS) was the task of studies. The PVC nanocomposites with MeOctPOSS concentration between 1 and 10 wt% were prepared by melt mixing processing, and the homogeneity of MeOctPOSS dispersion in the polymeric matrix was confirmed by scanning electron microscopy and energy dispersive spectroscopy observations. The influence of MeOctPOSS on glass transition temperature (Tg) determined by means of dynamic mechanical thermal analysis (DMTA) and differential scanning calorimetry (DSC) was observed, whereas, higher the measurement frequency, higher the glass transition temperature was noted. The MeOctPOSS concentration‐dependent PVC glass transition temperature was shifted from 73.8°C to about 68°C (ƒ = 1 Hz) and from 76.5°C to 70.8°C (ƒ = 10 Hz) for increasing additive content. Similar result of decreasing Tg value was observed by DSC method. An introduction of 10 wt% of MeOctPOSS into the PVC matrix results in a visible decrease of the maximum value of loss modulus (G′) of approximately 12% and 18% by 1 Hz and 10 Hz, respectively, as well as in a significant reduction of the static elastic modulus. It was stated that the polyhedral oligomeric silsesquioxanes with both methacryl and octyl groups may act as plasticizers of the PVC matrix. J. VINYL ADDIT. TECHNOL., 25:E48–E54, 2019. © 2018 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Polyhedral Oligomeric Silsesquioxanes Nanoparticles on Thermal and Mechanical Properties of Poly(vinyl chloride) Composite Materials

Tomaszewska

Sterzyński

Skórczewska

2018

Vinyl Additive Technology

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“…Due to the spatially segregated arrangement, the Janus star T 8 (PS) 3 (PDMS) 5 ‐phase separates even when the arm is as short as 1.4 kDa to form nanostructures with feature sizes as small as 6.4 nm. Such Janus architectures have been applied as plasticizers in polymer blends …”

Section: Regio‐isomersmentioning

confidence: 99%

“…Such Janus architectures have been applied as plasticizers in polymer blends. [16] The influence of regio-configurationo nt he self-assembly of these giant surfactants was studied using eight sets of DPOSS-2PS n isomers. [17] The phase diagrams were constructed, which show as ystematic phase boundary shift and phase stability variations with changing regio-configurations (Figure4).…”

Section: Regio-isomersmentioning

confidence: 99%

Macromolecular Isomerism in Giant Molecules

Shao

Shen

Zhang

2020

Chemistry A European J

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Macromolecular isomerism has been an important yet largely understudied subject. Giant molecules based on molecular nanoparticles exhibit properties highly dependent on the primary structures, providing a platform for such studies. Various isomers have been designed, synthesized and characterized, including sequence‐, regio‐, and topo‐isomers. The self‐assembly of these isomers is influenced by the distinct symmetry and collective interaction of each building block in a subtle and delicate way. The results suggest that isomerism may be exploited as a new way for fine‐tuning the structures and properties of macromolecules, which should be of great interest in both fundamental research and technical innovation.

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“…As discussed above, shape amphiphiles of Janus POSS‐hybrid polymers might offer better compatibility in polymer matrices. Fu et al have synthesized a biodegradable Janus POSS star polymer oom ‐T 8 PLLA 5 PCL 3 58 (three arms of PCL and five arms of poly( l ‐lactide) (PLLA) on two sides of the POSS cage) . By introducing oom ‐T 8 PLLA 5 PCL 3 into the PLLA matrix, the size of the dispersed PCL phase is reduced, resulting in enhanced mechanical properties in the composite.…”

Section: Potential Applications For Poss‐hybrid Polymersmentioning

confidence: 99%

Polyhedral Oligomeric Silsesquioxane Hybrid Polymers: Well‐Defined Architectural Design and Potential Functional Applications

Chen

Lin

Zhang

et al. 2019

Macromol. Rapid Commun.

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Polyhedral oligomeric silsesquioxane (POSS)‐hybrid polymers have been successfully employed as functional inorganic–organic hybrid materials for various applications due to their well‐determined structures. The past 6 years has witnessed growing interest in the rational design and synthetic approaches for POSS‐hybrid polymers, driven by the adoption of controlled living radial polymerization and click chemistry. This review addresses developments in the precise manipulation of POSS building blocks via atom transfer radical polymerization, reversible addition–fragmentation chain transfer, and click chemistry. Not only are the structures of POSS‐hybrid polymers tunable in terms of chemical composition, molecular weight, and polydispersity, but they are also controllable in sequential and hierarchical chain topology. Finally, some representative cutting‐edge applications of POSS‐hybrid polymers, including biomedical and energy‐related materials, fabrication of nanostructures, and functional surface coating materials, are highlighted.

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Synthesis of Janus POSS star polymer and exploring its compatibilization behavior for PLLA/PCL polymer blends

Cited by 50 publications

References 48 publications

Effect of Polyhedral Oligomeric Silsesquioxanes Nanoparticles on Thermal and Mechanical Properties of Poly(vinyl chloride) Composite Materials

Effect of Polyhedral Oligomeric Silsesquioxanes Nanoparticles on Thermal and Mechanical Properties of Poly(vinyl chloride) Composite Materials

Macromolecular Isomerism in Giant Molecules

Polyhedral Oligomeric Silsesquioxane Hybrid Polymers: Well‐Defined Architectural Design and Potential Functional Applications

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