نتایج جستجو برای: vinyl ether

تعداد نتایج: 32801  

Journal: :Journal of Polymer Science Part A-2: Polymer Physics 1969

Journal: :Journal of the Japan Society of Colour Material 1996

Journal: :Macromolecular Chemistry and Physics 2022

Abstract In‐depth understanding of copolymerization kinetics and the resulting polymer microstructure is crucial for design materials with well‐defined properties. Further, insights regarding impact solvents on allows precisely tuned materials. In this regard, in situ 1 H NMR spectroscopy enables precise monitoring living anionic ring‐opening (AROP) ethylene oxide (EO) glycidyl ethers allyl eth...

2013
Yumeng Xi Boliang Dong Xiaodong Shi

Gold-catalyzed O-vinylation of cyclic 1,3-diketones has been achieved for the first time, which provides direct access to various vinyl ethers. A catalytic amount of copper triflate was identified as the significant additive in promoting this transformation. Both aromatic and aliphatic alkynes are suitable substrates with good to excellent yields.

Journal: :Journal of chemical research 2022

Lactol carbocyclisations provide a succinct method of constructing the oxabicyclo[3.2.1]octane scaffold, motif present in various natural products medicinal interest. Lactols containing an unsaturated ketone or ester were prepared by olefin cross-metathesis; electrophilic alkene derived from methyl vinyl underwent concomitant terminal α-methylenation and oxa-Michael addition to give bridged lac...

2016

This study reports on the synthesis of zinc oxide (ZnO) nanostructures and examines the performance of polymer nanocomposites fabricated using ZnO dispersed in polymer host matrices. The polymer matrix used was an epoxy based thermosetting polymer known as Diglycidyl Ether of Bisphenol-A(DGEBA). Zinc oxide nano particles were prepared by precipitation method using Poly Vinyl Alcohol as the surf...

2016

This study reports on the synthesis of zinc oxide (ZnO) nanostructures and examines the performance of polymer nanocomposites fabricated using ZnO dispersed in polymer host matrices. The polymer matrix used was an epoxy based thermosetting polymer known as Diglycidyl Ether of Bisphenol-A(DGEBA). Zinc oxide nano particles were prepared by precipitation method using Poly Vinyl Alcohol as the surf...

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