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Journal articles on the topic 'POSS'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Shockey, Edward G., Alan G. Bolf, Paul F. Jones та ін. "Functionalized polyhedral oligosilsesquioxane (POSS) macromers: new graftable POSS hydride, POSS α-olefin, POSS epoxy, and POSS chlorosilane macromers and POSS-siloxane triblocks". Applied Organometallic Chemistry 13, № 4 (1999): 311–27. http://dx.doi.org/10.1002/(sici)1099-0739(199904)13:4<311::aid-aoc847>3.0.co;2-1.

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2

Su, Tao, Weiwei Men, Zhiqiang Wang, Lixin Xuan, and Weiwei Zhao. "POSS-benzocyclobutene (POSS-BCB) resin." High Performance Polymers 30, no. 9 (2017): 1123–29. http://dx.doi.org/10.1177/0954008317740194.

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Organic-inorganic hybrid materials with a high thermal stability and a low dielectric constant show great potential in the microelectronics industry. In this work, polyhedral oligomeric silsesquioxane-benzocyclobutenes (POSS-BCBs) were synthesized by a hydrosilylation reaction of octavinyloctasilasesquioxane (OVPOSS) and 4-(1,1-dimethyl-1-hydro)-silyl-benzocyclobutene with H2PtCl6 as a catalyst. The ring-opening reaction of BCB on POSS-BCBs resulted in POSS-BCB resins with a highly cross-linked network structure. This resin exhibited good thermal stability (T5% is 495°C in N2), low dielectric

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3

Shockey, Edward G., Alan G. Bolf, Paul F. Jones та ін. "ChemInform Abstract: Functionalized Polyhedral Oligosilsesquioxane (POSS) Macromers: New Graftable POSS Hydride, POSS α-Olefin, POSS Epoxy, and POSS Chlorosilane Macromers and POSS-Siloxane Triblocks." ChemInform 30, № 32 (2010): no. http://dx.doi.org/10.1002/chin.199932182.

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4

Qian, Chao, Chao Bian, and Chao Feng. "Subset Selection by Pareto Optimization with Recombination." Proceedings of the AAAI Conference on Artificial Intelligence 34, no. 03 (2020): 2408–15. http://dx.doi.org/10.1609/aaai.v34i03.5621.

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Subset selection, i.e., to select a limited number of items optimizing some given objective function, is a fundamental problem with various applications such as unsupervised feature selection and sparse regression. By employing a multi-objective evolutionary algorithm (EA) with mutation only to optimize the given objective function and minimize the number of selected items simultaneously, the recently proposed POSS algorithm achieves state-of-the-art performance for subset selection. In this paper, we propose the PORSS algorithm by incorporating recombination, a characterizing feature of EAs,

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5

Wheeler, Paul A., Bruce X. Fu, Joseph D. Lichtenhan, Jia Weitao, and Lon J. Mathias. "Incorporation of metallic POSS, POSS copolymers, and new functionalized POSS compounds into commercial dental resins." Journal of Applied Polymer Science 102, no. 3 (2006): 2856–62. http://dx.doi.org/10.1002/app.24645.

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6

Gamal Mohamed, Mohamed, Mei-Yin Tsai, Chih-Feng Wang, et al. "Multifunctional Polyhedral Oligomeric Silsesquioxane (POSS) Based Hybrid Porous Materials for CO2 Uptake and Iodine Adsorption." Polymers 13, no. 2 (2021): 221. http://dx.doi.org/10.3390/polym13020221.

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In this study, two different types of hybrid porous organic polymers (POPs), polyhedral oligomeric silsesquioxane tetraphenylpyrazine (POSS-TPP) and tetraphenylethene (POSS-TPE), were successfully synthesized through the Friedel−Crafts polymerization of tetraphenylpyrazine (TPP) and tetraphenylethene (TPE), respectively, with octavinylsilsesquioxane (OVS) as node building blocks, in the presence of anhydrous FeCl3 as a catalyst and 1,2-dichloroethane at 60 °C. Based on N2 adsorption and thermogravimetric analyses, the resulting hybrid porous materials displayed high surface areas (270 m2/g for

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7

Gamal Mohamed, Mohamed, Mei-Yin Tsai, Chih-Feng Wang, et al. "Multifunctional Polyhedral Oligomeric Silsesquioxane (POSS) Based Hybrid Porous Materials for CO2 Uptake and Iodine Adsorption." Polymers 13, no. 2 (2021): 221. http://dx.doi.org/10.3390/polym13020221.

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In this study, two different types of hybrid porous organic polymers (POPs), polyhedral oligomeric silsesquioxane tetraphenylpyrazine (POSS-TPP) and tetraphenylethene (POSS-TPE), were successfully synthesized through the Friedel−Crafts polymerization of tetraphenylpyrazine (TPP) and tetraphenylethene (TPE), respectively, with octavinylsilsesquioxane (OVS) as node building blocks, in the presence of anhydrous FeCl3 as a catalyst and 1,2-dichloroethane at 60 °C. Based on N2 adsorption and thermogravimetric analyses, the resulting hybrid porous materials displayed high surface areas (270 m2/g for

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8

Lichtenhan, Pielichowski, and Blanco. "POSS-Based Polymers." Polymers 11, no. 10 (2019): 1727. http://dx.doi.org/10.3390/polym11101727.

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The combination of functional polymers with inorganic nanostructured compounds has become a major area of research and technological development owing to the remarkable properties and multifunctionalities deriving from their nano and hybrid structures [...]

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9

Tanaka, Kazuo, Fumiyasu Ishiguro, and Yoshiki Chujo. "POSS Ionic Liquid." Journal of the American Chemical Society 132, no. 50 (2010): 17649–51. http://dx.doi.org/10.1021/ja105631j.

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10

Chinnam, Parameswara Rao, Michael R. Gau, Joseph Schwab, Michael J. Zdilla, and Stephanie L. Wunder. "The polyoctahedral silsesquioxane (POSS) 1,3,5,7,9,11,13,15-octaphenylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane (octaphenyl-POSS)." Acta Crystallographica Section C Structural Chemistry 70, no. 10 (2014): 971–74. http://dx.doi.org/10.1107/s2053229614019834.

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Solvent-free single crystals of 1,3,5,7,9,11,13,15-octaphenylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane (abbreviated as octaphenyl-POSS), C48H40O12Si8, were obtained by dehydration/condensation of the tetrol Si4O4(Ph)4(OH)4. The powder pattern generated from the single-crystal data matches well with the experimentally measured powder pattern of commercial octaphenyl-POSS. The geometry of the centrosymmetric molecule in the crystal was compared with that in the gas phase, and had shorter Si—O bond lengths and a broader range of Si—O—Si bond angles. The average Si—O bond length [1.621 (3) Å]

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11

Matějka, Libor, Piotr Murias, and Josef Pleštil. "Effect of POSS on thermomechanical properties of epoxy–POSS nanocomposites." European Polymer Journal 48, no. 2 (2012): 260–74. http://dx.doi.org/10.1016/j.eurpolymj.2011.11.009.

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12

Majumdar, Partha, Elizabeth Lee, Nathan Gubbins, et al. "Synthesis and antimicrobial activity of quaternary ammonium-functionalized POSS (Q-POSS) and polysiloxane coatings containing Q-POSS." Polymer 50, no. 5 (2009): 1124–33. http://dx.doi.org/10.1016/j.polymer.2009.01.009.

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13

Cobos, Mónica, Johnny R. Ramos, Dailyn J. Guzmán, M. Dolores Fernández, and M. Jesús Fernández. "PCL/POSS Nanocomposites: Effect of POSS Derivative and Preparation Method on Morphology and Properties." Polymers 11, no. 1 (2018): 33. http://dx.doi.org/10.3390/polym11010033.

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The incorporation of polyhedral oligomeric silsesquioxanes (POSS) molecules as nanoparticles into polymers can provide improved physico-chemical properties. The enhancement depends on the extent of dispersion of the nanofiller, which is determined by the compatibility with the polymer that is by the POSS type, and the processing method. In this study, poly(ε-caprolactone)/POSS derivatives nanocomposites (PCL/POSS) were obtained via solution-casting and melt compounding. Two amino-derivatives containing different alkyl substituents, and ditelechelic POSS-containing hybrid PCL masterbatch were u

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14

Zhou, Sheng Zhi, Xiao Yan Song, and Bo Wen Cheng. "Influence of POSS Content on the Thermal Properties of PAN/POSS Nanofibers." Applied Mechanics and Materials 423-426 (September 2013): 3–6. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.3.

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PAN/POSS nanofibers membrane with different content POSS have been prepared by electrospinning. The morphology and thermal properties of PAN/POSS nanofibers are characterized by SEM and DSC, respectively. The addition of different content of POSS into PAN matrix have a slight effect on the diameter of nanofibers. Compared to pure PAN fibers, the exothermic peak shift to higher temperatures by 6.8°C when POSS loading is 3wt%, and the corresponding Tg have increased 17.3°C.

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15

Mantz, R. A., P. F. Jones, K. P. Chaffee, et al. "Thermolysis of Polyhedral Oligomeric Silsesquioxane (POSS) Macromers and POSS−Siloxane Copolymers." Chemistry of Materials 8, no. 6 (1996): 1250–59. http://dx.doi.org/10.1021/cm950536x.

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16

Calabrese, Carla, Carmela Aprile, Michelangelo Gruttadauria, and Francesco Giacalone. "POSS nanostructures in catalysis." Catalysis Science & Technology 10, no. 22 (2020): 7415–47. http://dx.doi.org/10.1039/d0cy01407a.

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17

Tanaka, Kazuo, Fumiyasu Ishiguro, Jong-Hwan Jeon, Tatsuhiro Hiraoka, and Yoshiki Chujo. "POSS ionic liquid crystals." NPG Asia Materials 7, no. 4 (2015): e174-e174. http://dx.doi.org/10.1038/am.2015.28.

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18

Kuo, Shiao-Wei, and Feng-Chih Chang. "POSS related polymer nanocomposites." Progress in Polymer Science 36, no. 12 (2011): 1649–96. http://dx.doi.org/10.1016/j.progpolymsci.2011.05.002.

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19

Sun, Junshan, Yanli Chen, Luyang Zhao, et al. "Porphyrin-POSS Molecular Hybrids." Chemistry - A European Journal 19, no. 38 (2013): 12613–18. http://dx.doi.org/10.1002/chem.201301875.

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20

Xin, Cunliang, Xiaoyan Ma, Fang Chen, Chunying Song, and Xiaohong Qu. "Synthesis of EP-POSS mixture and the properties of EP-POSS/epoxy, SiO2/epoxy, and SiO2/EP-POSS/epoxy nanocomposite." Journal of Applied Polymer Science 130, no. 2 (2013): 810–19. http://dx.doi.org/10.1002/app.39203.

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21

Bram, Avraham I., Irina Gouzman, Asaf Bolker, Nurit Atar, Noam Eliaz, and Ronen Verker. "Influence of POSS Type on the Space Environment Durability of Epoxy-POSS Nanocomposites." Nanomaterials 12, no. 2 (2022): 257. http://dx.doi.org/10.3390/nano12020257.

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In order to use polymers at low Earth orbit (LEO) environment, they must be protected against atomic oxygen (AO) erosion. A promising protection strategy is to incorporate polyhedral oligomeric silsesquioxane (POSS) molecules into the polymer backbone. In this study, the space durability of epoxy-POSS (EPOSS) nanocomposites was investigated. Two types of POSS molecules were incorporated separately—amine-based and epoxy-based. The outgassing properties of the EPOSS, in terms of total mass loss, collected volatile condensable material, and water vapor regain were measured as a function of POSS t

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22

Kosmalska, Anna, Anna Strąkowska, and Marian Zaborski. "Properties of POSS/HNBR Elastomer Nanocomposites." Materials Science Forum 714 (March 2012): 175–81. http://dx.doi.org/10.4028/www.scientific.net/msf.714.175.

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A series of composite materials containing polyhedral oligomeric silsesquioxanes (POSS) and hydrogenated butadiene-acrylonitrile rubber (HNBR) were prepared. The goal of the work was to evaluate the effect of the type and reactivity of functional groups in the POSS cage on properties of the resulting elastomeric nanocomposites. The paper presents some of the preliminary results obtained from the studies. The results indicate that incorporation of POSS into silica-filled HNBR elastomer network increases interfacial interactions of the systems and the POSS molecules can be successfully used as c

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23

Wang, Bing, Minxian Shi, Jie Ding, and Zhixiong Huang. "Polyhedral oligomeric silsesquioxane (POSS)-modified phenolic resin: Synthesis and anti-oxidation properties." e-Polymers 21, no. 1 (2021): 316–26. http://dx.doi.org/10.1515/epoly-2021-0031.

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Abstract In this work, octamercapto polyhedral oligomeric silsesquioxane (POSS-8SH) and octaphenol polyhedral oligomeric silsesquioxane (POSS-8Phenol) were successfully synthetized. POSS-8Phenol was added into the synthesis process of liquid thermoset phenolic resin (PR) to obtain POSS-modified phenolic resin (POSS-PR). Chemical structures of POSS-8SH, POSS-8Phenol, and POSS-PR were confirmed by FTIR and 1H-NMR. TG and DTG analysis under different atmosphere showed that char yield of POSS-PR at 1,000°C increased from 58.6% to 65.2% in N2, which in air increased from 2.3% to 26.9% at 700°C. The

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24

Lipińska, Magdalena. "The Effect of Various Polyhedral Oligomeric Silsesquioxanes on Viscoelastic, Thermal Properties and Crystallization of Poly(ε-caprolactone) Nanocomposites". Polymers 14, № 23 (2022): 5078. http://dx.doi.org/10.3390/polym14235078.

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Polyhedral oligomeric silsesquioxane POSS nanoparticles can be applied as reinforcing additives modifying various properties of biodegradable polymers. The effects of aminopropylisobutyl POSS (amine-POSS), trisilanolisooctyl-POSS (HO-POSS) and glycidyl-POSS (Gly-POSS) on the viscoelastic, thermal properties and crystallization of biodegradable poly(ε-caprolactone) PCL were studied. The analysis of the viscoelastic properties at ambient temperature indicated that aminopropylisobutyl POSS (amine-POSS) and glycidyl-POSS (Gly-POSS) enhanced the dynamic mechanical properties of PCL. The increase in

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25

Raus, Vladimír, Eva Čadová, Larisa Starovoytova, and Miroslav Janata. "ATRP of POSS Monomers Revisited: Toward High-Molecular Weight Methacrylate–POSS (Co)Polymers." Macromolecules 47, no. 21 (2014): 7311–20. http://dx.doi.org/10.1021/ma501541g.

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26

Misra, Rahul, Bruce X. Fu, Andreas Plagge, and Sarah E. Morgan. "POSS-nylon 6 nanocomposites: Influence of POSS structure on surface and bulk properties." Journal of Polymer Science Part B: Polymer Physics 47, no. 11 (2009): 1088–102. http://dx.doi.org/10.1002/polb.21714.

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27

Gu, S. Y., and X. F. Gao. "Improved shape memory performance of star-shaped POSS-polylactide based polyurethanes (POSS-PLAUs)." RSC Advances 5, no. 109 (2015): 90209–16. http://dx.doi.org/10.1039/c5ra14742e.

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28

Kodal, Mehmet. "Polypropylene/polyamide 6/POSS ternary nanocomposites: Effects of POSS nanoparticles on the compatibility." Polymer 105 (November 2016): 43–50. http://dx.doi.org/10.1016/j.polymer.2016.10.021.

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29

Zhao, Huipeng, Jie Shu, Qun Chen, and Shanmin Zhang. "Quantitative structural characterization of POSS and octavinyl-POSS nanocomposites by solid state NMR." Solid State Nuclear Magnetic Resonance 43-44 (May 2012): 56–61. http://dx.doi.org/10.1016/j.ssnmr.2012.02.005.

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30

Chinnam, Parameswara Rao, and Stephanie L. Wunder. "Polyoctahedral Silsesquioxane-Nanoparticle Electrolytes for Lithium Batteries: POSS-Lithium Salts and POSS-PEGs." Chemistry of Materials 23, no. 23 (2011): 5111–21. http://dx.doi.org/10.1021/cm2015675.

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31

Xu, Yiting, Cong Li, Min Chen, et al. "The effect of POSS-based block copolymer as compatibilizer on POSS/epoxy composites." Journal of Materials Research 30, no. 2 (2015): 266–77. http://dx.doi.org/10.1557/jmr.2014.364.

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32

Wang, Yen-Zen, Huang-Shian Tsai, Zhao-Yu Ji, and Wen-Yi Chen. "Controlling POSS dispersion in epoxy in nanocomposite by introducing multi-epoxy POSS groups." Journal of Materials Science 42, no. 17 (2007): 7611–16. http://dx.doi.org/10.1007/s10853-007-1845-x.

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33

Sirin, Humeyra, Dilek Turan, Guralp Ozkoc, and Sezen Gurdag. "POSS reinforced PET based composite fibers: “Effect of POSS type and loading level”." Composites Part B: Engineering 53 (October 2013): 395–403. http://dx.doi.org/10.1016/j.compositesb.2013.05.033.

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34

Żak, Patrycja, and Cezary Pietraszuk. "Application of olefin metathesis in the synthesis of functionalized polyhedral oligomeric silsesquioxanes (POSS) and POSS-containing polymeric materials." Beilstein Journal of Organic Chemistry 15 (February 4, 2019): 310–32. http://dx.doi.org/10.3762/bjoc.15.28.

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This mini-review summarizes the applications of olefin metathesis in synthesis and functionalization of polyhedral oligomeric silsesquioxanes (POSS) and POSS-containing polymeric materials. Three types of processes, i.e., cross metathesis (CM) of vinyl-substituted POSS with terminal olefins, acyclic diene metathesis (ADMET) copolymerization of divinyl-substituted POSS with α,ω-dienes and ring-opening metathesis polymerization (ROMP) of POSS-substituted norbornene (or other ROMP susceptible cycloolefins) are discussed. Emphasis was put on the synthetic and catalytic aspects rather than on the p

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35

Guo, Lei, Zhuping Li, Xiubang Wu, et al. "Photocured Zwitterionic Coatings Containing POSS for Antifogging Applications." Coatings 13, no. 7 (2023): 1152. http://dx.doi.org/10.3390/coatings13071152.

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The conventional fabrication of antifogging polymer coatings such as zwitterionic or amphiphilic copolymers typically require multiple processes. In this work, a simple photocuring method was used to create a series of zwitterionic coatings containing polyhedral oligomeric silsesquioxane (POSS) without the need to prepare copolymer. Surface analysis demonstrated that the coating thickness was typically about 6 μm, and the surface POSS content showed a tendency of increasing with POSS. A wettability analysis demonstrated that zwitterionic coating with high POSS content held better water absorbi

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36

Lipińska, Magdalena, Klaudia Toczek, and Magdalena Stefaniak. "Viscoelastic Properties of Epoxidized Natural Rubber/Poly(lactic acid) PLA/ENR Blends Containing Glycidyl-POSS and Trisilanolisooctyl-POSS as Functional Additives." Materials 14, no. 10 (2021): 2686. http://dx.doi.org/10.3390/ma14102686.

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The glycidyl-POSS (Polyhedral Oligomeric Silsesquioxanes, Polysilsesquioxane, POSS) (Gly-POSS) and trisilanolisooctyl-POSS (HO-POSS) were applied as functional additives influencing on the viscoelastic properties of the dynamic vulcanized PLA/ENR (poly(lactic acid)/epoxidized natural rubber) blends. The plasticizing effect of HO-POSS on PLA/ENR melt, leading to the decrease of complex viscosity at 160 °C, was observed. After the incorporation of Gly-POSS into PLA/ENR blends the complex viscosity increased confirming that the epoxy groups of Gly-POSS were able to react with the functional group

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37

Gao, Jin, Sihua Guo, Jiaquan Liu, and Jiao Li. "Properties of Polyhedral Oligomeric Silsesquioxane-Modified Cellulose Insulation Paper with Different Number of Phenyls." International Journal of Heat and Technology 39, no. 2 (2021): 383–89. http://dx.doi.org/10.18280/ijht.390207.

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Polyhedral oligomeric silsesquioxane (POSS) has a total of eight substituents. The number of substituents determines the modification effect of POSS. Through simulation of molecular dynamics, this paper explores how the number of substituents affects the POSS-modified cellulose insulation paper. Specifically, the mechanical properties, thermal stability and polarizability were calculated for cellulose models with 1-phenyl POSS, 2-phenyl POSS, 3-phenyl POSS, 4-phenyl POSS, 5-phenyl POSS, 6-phenyl POSS, 7-phenyl POSS, and 8-phenyl POSS, respectively. The results show that the cellulose model mod

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38

Chen, Yi, Yue Peng, Wen Yong Liu, Guang Sheng Zeng, Xiang Gang Li, and Wu Wang. "Effect of POSS on the Compatibility and Mechanical Properties of PC/PLA Blends." Applied Mechanics and Materials 427-429 (September 2013): 170–73. http://dx.doi.org/10.4028/www.scientific.net/amm.427-429.170.

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Polycarbonate/poly (lactic acid)/(PC/PLA) blends were modified by two kinds of POSS, glycidyl POSS (G-POSS) and Octa-ammonium POSS (O-POSS), respectively. The morphologies and mechanical properties of blends were investigated systematically. The results showed that the adding of O-POSS has a better effect on the compatibility of blend than adding G-POSS, the separate phase is invisible in the morphology of blends, and the mechanical properties of blends are improved significantly with the increase of added O-POSS.

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39

Wang, Bing Tao, Yan Zhang, and Zheng Ping Fang. "Synthesis and Characterization of Biodegradable Aliphatic-Aromatic Copolyesters Nanocomposites Containing POSS." Advanced Materials Research 236-238 (May 2011): 2028–31. http://dx.doi.org/10.4028/www.scientific.net/amr.236-238.2028.

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Biodegradable aliphatic-aromatic copolyesters/POSS nanocomposites were synthesized via in situ melt copolycondensation of terephthalic acid (TPA), poly(L-lactic acid) oligomer (OLLA), 1,4-butanediol (BDO) and polyhedral oligomeric silsesquioxanes (POSS) reagents (POSS-NH2 and POSS-PEG). The morphologies and dispersions of two POSS reagents in the nanocomposites and their effects on the mechanical and thermal properties were investigated. TEM and XRD characterizations confirmed that POSS-NH2 formed crystalline microaggregates and took poor dispersions in the nanocomposite, while POSS-PEG had be

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40

Wang, Mingyue, Hong Chi, Joshy K.S., and Fuke Wang. "Progress in the Synthesis of Bifunctionalized Polyhedral Oligomeric Silsesquioxane." Polymers 11, no. 12 (2019): 2098. http://dx.doi.org/10.3390/polym11122098.

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Polyhedral oligomeric silsesquioxane (POSS) has been considered as one of the most promising nanofillers in academic and industrial research due to its unique multifunctional nanostructure, easy functionalization, hybrid nature, and high processability. The progress of POSS has been extensive, particularly applications based on single- or multiple-armed POSS. In polymer hybrids, in order to enhance the properties, bifunctional POSS has been incorporated into the backbone chain of the polymer. This review summarizes recent developments in the synthesis, modification, and application of bifuncti

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41

Liu, Wei, Shu Xia Wang, Jun Ming Dai, and Guang Li. "Microstructure and Thermal Properties of PET/POSS Composites Prepared by In Situ Polymerization." Materials Science Forum 815 (March 2015): 534–38. http://dx.doi.org/10.4028/www.scientific.net/msf.815.534.

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Poly(ethylene terephathalate)/1,2-propanediolisobutyl polyhedral oligomeric silsesquioxane (POSS) composites were prepared by in situ polymerization with 1.5-5.0 wt% loading of POSS. The dispersion of POSS in PET matrix was investigated by scanning electron microscope(SEM) the interaction between POSS and PET chains was studied by nuclear magnetic resonance(NMR) andX-ray photoelectron spectroscopy(XPS), and the thermal behavior of PET/POSS composites was investigated by DSC and TG as well as the melt rheological testing of PET/POSS. SEM observation suggests that POSS particles disperse evenly

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42

Xu, Yiting, Jiangfeng Chen, Jiamei Huang, Jie Cao, Jean-François Gérard, and Lizong Dai. "Nanostructure of reactive polyhedral oligomeric silsesquioxane-based block copolymer as modifier in an epoxy network." High Performance Polymers 29, no. 10 (2016): 1148–57. http://dx.doi.org/10.1177/0954008316671792.

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To obtain a novel polyhedral oligomeric silsesquioxane (POSS)-based nanomodifier, copolymerization of methacrylate-POSS (MA-POSS) and glycidyl MA (GMA) was carried out via reversible addition-fragmentation chain transfer process. The as-synthesized poly(glycidyl methacrylate) (PGMA)-b-P(MA-POSS) block copolymers (BCPs) were characterized by proton nuclear magnetic resonance, Fourier transform infrared spectroscopy, and gel permeation chromatography. The introduction of a POSS component improved the thermostability of the BCP. Then, PGMA-b-P(MA-POSS) copolymer was reactively incorporated into 4

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43

Chen, Qiao, and Fang Ke Shao. "Proton Exchange Membranes Based on POSS." Advanced Materials Research 953-954 (June 2014): 985–88. http://dx.doi.org/10.4028/www.scientific.net/amr.953-954.985.

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Two kinds of proton exchange membranes (PEMs) containing POSS are designed and prepared, one is sulfonated poly (ether ether ketone) (SPEEK)/bisphenol S diglycidyl ether (DEBS)/POSS hybrids with the semi-interpenetrating polymer networks (IPNs) structure and the other is sulfonated polyimides (SPI)/POSS hybrids with cross-link structure. IPNs should be more contributed to improve the proton conductivities of PEMs than cross-link structure.

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44

Kozuma, Tomoya, Aki Mihata, and Yoshiro Kaneko. "Preparation of Soluble POSS-Linking Polyamide and Its Application in Antifogging Films." Materials 14, no. 12 (2021): 3178. http://dx.doi.org/10.3390/ma14123178.

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In this study, we prepared a polyhedral oligomeric silsesquioxane (POSS)-linking polyamide (POSS polyamide) by a polycondensation of ammonium-functionalized POSS (POSS-A) and carboxyl-functionalized POSS (POSS-C) in dehydrated dimethyl sulfoxide (DMSO) using 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) and N-hydroxysuccinimide (NHS) as condensing agents. The obtained POSS polyamide was soluble in various highly polar solvents, and it could form a self-standing film. FT-IR, 1H NMR, and 29Si NMR analyses showed that POSS polyamide is a polymer in which POSS-A and POSS-C are

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Wang, Bing Tao, Ping Zhang, and De Gao. "PLA-Based Biodegradable Copolyester Nanocomposites: Preparation, Characterization and Mechanical Properties." Advanced Materials Research 380 (November 2011): 290–93. http://dx.doi.org/10.4028/www.scientific.net/amr.380.290.

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In situ melt copolycondensation was proposed to prepare biodegradable copolyester nanocomposites based on degradable components poly(L-lactic acid) (PLA), rigid segments poly(butylene terephthalate) (PBT), and nanoparticles polyhedral oligomeric silsesquioxanes (POSS). The morphologies and dispersions of two POSS nanoparticles (POSS-NH2 and POSS-PEG) in the copolyester PLABT matrix and their effects on the mechanical properties were investigated. The results demonstrated that the morphologies and dispersions of POSS-NH2 and POSS-PEG showed quite different characteristics. POSS-PEG took better

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Wang, Xiaotao, Zhuofan Chen, Yiwan Huang, et al. "Liquid crystallinity and thermal properties of polyhedral oligomeric silsesquioxane/side-chain azobenzene hybrid copolymer." Nanotechnology Reviews 9, no. 1 (2020): 886–95. http://dx.doi.org/10.1515/ntrev-2020-0068.

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AbstractAcrylic acid-modified polyhedral oligomeric silsesquioxane (AC-POSS) was synthesized by the reaction between the amine groups in polyhedral oligomeric silsesquioxane (POSS) and acrylic acid, which could dissolve in water and can be easily purified. Free-radical copolymerization was applied to synthesize azobenzene liquid crystalline polymer silsesquioxane (LCP-POSS) with different proportions of AC-POSS and liquid crystalline monomers. The trans-isomers of azobenzene moieties in LCP-POSS were gradually transformed to cis-isomers with increasing ultraviolet irradiation time. The photois

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Liu, Weiming, Guohua Hang, Honggang Mei, Lei Li, and Sixun Zheng. "Nanocomposites of Polyhydroxyurethane with POSS Microdomains: Synthesis via Non-Isocyanate Approach, Morphologies and Reprocessing Properties." Polymers 14, no. 7 (2022): 1331. http://dx.doi.org/10.3390/polym14071331.

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In this contribution, we reported the synthesis of a novel trifunctional POSS cyclic carbonate [POSS-3(5CC)]. With a difunctional five-member cyclic carbonate and a trifunctional polyetheramine as the precursor, the nanocomposites of polyhydroxyurethane (PHU) with POSS were synthesized. Transmission electron microscopy (TEM) showed that the nanocomposites of PHUs with POSS were microphase-separated; the spherical POSS microdomains via POSS-POSS interactions were generated with the size of 20~40 nm in diameter. After the introduction of POSS microdomains, the nanocomposites displayed improved t

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Wen, Miao Qin, Tao Jiang, and Ying Ding. "Synthesis, Characterization, and Properties of POSS-Epoxy." Advanced Materials Research 1096 (April 2015): 199–203. http://dx.doi.org/10.4028/www.scientific.net/amr.1096.199.

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Polyhedral oligemeric silsesquioxanes epoxy (POSS-EP) was prepared from 3-glycidyloxy-propyl-trimethoxysilane (KH-560) and tetramethylammonium hydroxide (TMAH) by hydrolytic condensation. POSS-EP was characterized using fourier-transformed infrared spectroscopy (FTIR), thermal gravity analysis (TGA) and gel permeation chromatography (GPC). When the mass ratio of KH-560 and 25wt% TMAH was 20:1 and the temperature of hydrolytic condensation was 80°C, T8 was the majority and certain a mount of T10. The temperature of POSS-EP in weight loss 5wt% and the maximum degradation rate was approximately 2

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Zhao, Chun Bao, Xin Wang, Xu Jie Yang, and Wei Zhao. "Thermal and Mechanical Properties of Poly(methyl methacrylate) Nanocomposites Containing Polyhedral Oligomeric Silsesquioxane." Advanced Materials Research 557-559 (July 2012): 304–8. http://dx.doi.org/10.4028/www.scientific.net/amr.557-559.304.

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A series of poly(methyl methacrylate) (PMMA) composites containing polyhedral oligomeric silsesquioxane (POSS) were produced by bulk polymerization. The morphology, thermal and mechanical properties of the composites were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), thermogravimetric analyses (TGA) and dynamic mechanical analyses (DMA). Results show that the octa(3-chloropropyl)-POSS (ocp-POSS) and trisilanolphenyl-POSS (triol-POSS) have high compatibility with PMMA and can be uniformly dispersed into PMMA matrix. The separate incorporation of these two typ

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Grewal, Seema. "An interview with Ken Poss." Development 147, no. 12 (2020): dev193078. http://dx.doi.org/10.1242/dev.193078.

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