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441 Newest Publications about the topic propylene oxide


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Synthesis and characterization of Al2O3-C hybrid aerogels by a one-pot sol-gel method

06-Aug-2017 | Author(s): Rui Zhang, Ning Jiang, Xiao-jia Duan, Shuang-ling Jin, Ming-lin Jin, New Carbon Materials, 2017

Publication date: June 2017 Source:New Carbon Materials, Volume 32, Issue 3 Author(s): Rui Zhang, Ning Jiang, Xiao-jia Duan, Shuang-ling Jin, Ming-lin Jin Al2O3-C hybrid aerogels were prepared by a one-pot sol-gel method, supercritical n-hexane drying and carbonization using ...


Continuous Mesoporous Pd Films by Electrochemical Deposition in Nonionic Micellar Solution

17-Jul-2017 | Muhammad Iqbal; Cuiling Li; Kathleen Wood; Bo Jiang; Toshiaki Takei; Ömer Dag; Daisuke Baba; Asep Sugih Nugraha; Tor ..., Chemistry of Materials, 2017

Mesoporous metals that combine catalytic activity and high surface area can provide more opportunities for electrochemical applications. Various synthetic methods, including hard and soft templating, have been developed to prepare mesoporous/nanoporous metals. Micelle assembly, typically involved ...


Dialkylmagnesium‐Promoted Deprotonation of Protic Precursors for the Activated Anionic Ring‐Opening Polymerization of Epoxides

13-Jul-2017 | Kévin Roos, Anne‐Laure Wirotius, Stéphane Carlotti, Macromolecular Chemistry and Physics, 2017

Dialkylmagnesium (R2Mg) compounds are investigated as deprotonating agents of various protic functions to form reactive precursors for the anionic ring‐opening polymerization of epoxides, i.e., ethylene oxide, propylene oxide, butylene oxide, and methyl glycidyl ether, activated by ...


Simulation Analysis of the Kinetic Exchange of Copolymer Surfactants in Micelles

27-Jun-2017 | Fabián A. García Daza; Josep Bonet Avalos; Allan D. Mackie, Langmuir, 2017

The exchange of surfactants in micelles involves several processes that are difficult to characterize experimentally. Microscopic simulations have the potential to reveal some of the key activities that occur when a surfactant spontaneously exits a micelle. In this work, we present a quantitative ...


Ionic-Liquid-Based Heterogeneous Covalent Triazine Framework Cobalt Catalyst for the Direct Synthesis of Methyl 3-Hydroxybutyrate from Propylene Oxide

05-Jun-2017 | Senkuttuvan Rajendiran; Kwangho Park; Kwangyeol Lee; Sungho Yoon, Inorganic Chemistry, 2017

Inorganic Chemistry DOI: 10.1021/acs.inorgchem.7b00974


Effects of Membrane Defects and Polymer Hydrophobicity on Networking Kinetics of Vesicles

30-May-2017 | Yan Xia; Hyun-Sook Jang; Zhiqiang Shen; Geoffrey D. Bothun; Ying Li; Mu-Ping Nieh, Langmuir, 2017

The kinetics of clustering unilamellar vesicles induced by inverse Pluronics [poly(propylene oxide)m–poly(ethylene oxide)n–poly(propylene oxide)m, POm–EOn–POm] was investigated via experiments and molecular dynamic simulations. Two important factors for controlling the networking kinetics are the ...


Silica Nanotubes with Widely Adjustable Inner Diameter and Ordered Silicas with Ultralarge Cylindrical Mesopores Templated by Swollen Micelles of Mixed Pluronic Triblock Copolymers

18-May-2017 | George Farid; Michal Kruk, Chemistry of Materials, 2017

Mixtures of commercially available Pluronic poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymers combined with appropriate swelling agents are proposed as templates for silica nanotubes and ordered silicas with very large cylindrical mesopores. In ...


A new route for the preparation of enriched iso-polylactide from rac-lactide via a Lewis acid catalyzed ring-opening of an epoxide

02-May-2017 | Mathew Anker; Choumini Balasanthiran; Vagulejan Balasanthiran; Malcolm H. Chisholm; Savithra Jayaraj; Kaleb Mathieu; ..., Dalton Transactions, 2017

Tetraphenylporphyrin aluminum(iii) salts, TPPAlX, where X = Me, OEt, OiPr, OCHMeCH2Cl, and Cl, and bis(triphenylphosphine)imminium chloride, PPN+Cl− (1 [ ] : [ ] 1) react with rac-lactide, rac-LA, in neat propylene oxide, PO, to yield chains of enriched isotactic polylactide, PLA, with end groups ...


Ring-Opening Polymerization of Epoxides: Facile Pathway to Functional Polyethers via a Versatile Organoaluminum Initiator

04-Apr-2017 | Christina G. Rodriguez; Robert C. Ferrier, Jr.; Alysha Helenic; Nathaniel A. Lynd, Macromolecules, 2017

We report a new class of organoaluminum-based initiator for anionic ring-opening polymerization of epoxides that is simple to synthesize from readily available precursors. The resultant organometallic initiator was the triethylaluminum adduct of (2-dibenzylamino)ethoxydiethylaluminum (TAxEDA) ...


Ring Shuttling Controls Macroscopic Motion in a Three‐Dimensional Printed Polyrotaxane Monolith

22-Mar-2017 | Qianming Lin, Xisen Hou, Chenfeng Ke, Angewandte Chemie International Edition, 2017

Abstract Amplification of molecular motions into the macroscopic world has great potential in the development of smart materials. Demonstrated here is an approach that integrates mechanically interlocked molecules into complex three‐dimensional (3D) architectures by direct‐write 3D printing. ...


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