682-08-6Relevant articles and documents
Thermomechanical Formation-Structure-Property Relationships in Photopolymerized Copper-Catalyzed Azide-Alkyne (CuAAC) Networks
Baranek, Austin,Song, Han Byul,McBride, Mathew,Finnegan, Patricia,Bowman, Christopher N.
, p. 1191 - 1200 (2016/03/25)
Bulk photopolymerization of a library of synthesized multifunctional azides and alkynes was carried out toward developing structure-property relationships for CuAAC-based polymer networks. Multifunctional azides and alkynes were formulated with a copper catalyst and a photoinitiator, cured, and analyzed for their mechanical properties. Material properties such as the glass transition temperatures (Tg) show a strong dependence on monomer structure with Tg values ranging from 41 to 90 °C for the series of CuAAC monomers synthesized in this study. Compared to the triazoles, analogous thioether-based polymer networks exhibit a 45-49 °C lower Tg whereas analogous monomers composed of ethers in place of carbamates exhibit a 40 °C lower Tg. Here, the formation of the triazole moiety during the polymerization represents a critical component in dictating the material properties of the ultimate polymer network where material properties such as the rubbery modulus, cross-link density, and Tg all exhibit strong dependence on polymerization conversion, monomer composition, and structure postgelation.
BIO-NANO POWER CELLS AND THEIR USES
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Paragraph 0508; 0509; 0510; 0511, (2014/01/08)
The present invention concerns bio-nano power cells and methods of their manufacture and use. More particularly, the present invention relates to the preparation of bio-nano power cells that are biocompatible and capable of producing flash, intermittent, or continuous power by electrolyzing compounds in biological systems.
Dendritic nanospace constructed by only glycerol units enhanced uptake of a fluorescent molecule in aqueous solution
Lee, Haejoo,Ooya, Tooru
supporting information; experimental part, p. 546 - 548 (2012/02/05)
A polyglycerol dendrimer (PGD) of generation 2, which consists of only glycerol units, constructed nanospace capable of uptake of a fluorescent molecule with a 1:1 stoichiometry. On the other hand, a PGD of generation 1 trapped the molecule at the outer part.
Liquid epoxy compound and process for preparing the same
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, (2008/06/13)
A liquid trifunctional epoxy compound with a total chlorine content of 100 ppm or less represented by general formula (1) is obtained by epoxidizing a triallyl ether represented by general formula (2) with a peroxide and the liquid epoxy compound is useful as a diluent in a variety of applications, particularly useful as a liquid encapsulating material in electronic applications: R[—(OCH2CH2)n—OG]3??(1) R[—(OCH2CH2)n—O—CH2—CH═CH2]3??(2) (wherein R is a trivalent hydrocarbon group in which 3 different carbon atoms participate in bond formation or, more particularly, a straight-chain or branched hydrocarbon group containing 3-10 carbon atoms, a cycloalkane group containing 6 carbon atoms or a hydrocarbon group containing 7-20 carbon atoms and consisting of hydrocarbon chains and cycloalkane rings, n is 0, 1, or 2 and G is glycidyl group).
Alkylation of Pentaerythritol and Trimethylolpropane, Two Very Hydrophilic Polyols, by Phase-Transfer Catalysis.
Nouguier, R. M.,Mchich, M.
, p. 3296 - 3298 (2007/10/02)
Two very hydrophilic polyols, pentaerythritol and trimethylolpropane , can be etherified in good yields by phase-transfer catalysis with allyl chloride or heptyl bromide as alkylating agents.Ion pairs solubilities, lipophilicities of catalysts, and nature of the reaction products which are key factors in achievement of this PTC reaction are discussed.