| |
Vilsmeier-Type Reaction of Dimethylaminoalkenoyl Cyclopropanes: One-Pot Access to 2,3-Dihydrofuro [3,2-c]pyridin-4(5H)-ones
关键字：Vilsmeier reaction, pyridin-4(5H)-ones, ring-enlargement
A domino reaction of readily available 1-carbamoyl-1 dimethylaminoalkenoylcyclopropanes in the presence of triflic anhydride (Tf2O) in N,
N-dimethylformamide (DMF) is described, which provides a facile one-pot access to 2,3-dihydrofuro[3,2-c]pyridin-4(5H)-ones via tandem formylation (Vilsmeier-type reaction), intramolecular cyclization, and ring-enlargement sequences.
http://www.polymer.cn/research/sy_info14922 |
| |
Investigation of polypropylene in-reactor alloy with one-step polymerization via Ziegler-Natta/metallocene hybrid catalyst
The research was carried out focusing on the relationship between the microstructure and property ofpolypropylene in-reactor alloy, which include the fundamental research on the pristine morphology,microstructure and mechanical properties, crystallization...
http://www.polymer.cn/research/dis_info16934 |
| |
Rotational viscometers are one of the most popular apparatuses of the viscosity measurement with a SER Universal Testing Platform
In the past years there has appeared a possibility to measure elongational viscosity of polymer melts using polymer samples of comparable dimensions (i.e. width or diameter vs. length) in contrast to oblong samples required by&nbs...
http://www.polymer.cn/research/dis_info12933 |
| |
High efficiency fluorescent white organic light-emitting diodes with one emission layer
关键字：organic light-emitting diodes
Highly efficient fluorescent white organic light-emitting diodes (WOLEDs) have been fabricated by codoping orange and blue dyes into one host material.
http://www.polymer.cn/research/dis_info9010 |
| |
Creating Tunable Nanocavities and Nanotubes: One-Pot Macrocyclization Assisted by Preorganization of Precursor Oligomers
关键字：cyclic aromatic oligoamides
The preparation of materials possessing nanocavities and nanopores has attracted intense interests in recent years due to their unique properties and applications. Among the various strategies advocated to date for generating well-defined m...
http://www.polymer.cn/research/dis_info6043 |
| |
Temperature distribution of solids in one novel screw extruder
关键字：non- isothermal; solid conveying; centrifugal force; nested double-screw extruder
A novel nested double-screw extruder with higher solid conveying capability is introduced. From the previous pressure model considering centrifugal force and solid compressibility, and Tadmor-Broyer’s non-isothermal model in solid conveying zone,&nb...
http://www.polymer.cn/research/dis_info2559 |
| |
One-pot Synthesis of Nanoparticles Based on Styrene and Maleic Anhydride
关键字：One,pot,Synthesis,Nanoparticles,Based,Styrene,Maleic,Anhydride,
Copolymers containing maleic anhydride (MAn) have received considerable attention due to their unique properties.
http://www.polymer.cn/research/dis_info2062 |
| |
Low-threshold random laser with one mirror and feedbacks in PMMA nano-composite films
关键字：coherent, incoherent, laser, nano-composite, dye
In this article, low-threshold random laser with one mirror and feedback is investigated in PMMA film containing Rhodamine 590 and TiO2 nano-particles. Incoherent and coherent laser emission is observed. Optics microscopy and Scanning ...
http://www.polymer.cn/research/dis_info1501 |
| |
One-pot synthesis of amphiphilic Janus gold nanoparticles with Dpenicillamine and benzyl mercaptan ligands by toluene/water emulsion reaction
Amphiphilic Janus Au NPs were synthesized by emulsion reaction with presence of D-penicillamine (D-PA) and benzyl mercaptan (BM) molecules at water and toluene phases, respectively. TEM and XRD characterizations indicate that the reaction product is composed of Au nanocrystals in size of 2.9 nm. XPS, FTIR, Raman and 1H NMR analyses suggest that the capping ligands on the Au NPs are D-PA and BM, ...
http://www.polymer.cnt//ss/luokun998/publicationsshow_14440.html |
| |
Highly Efficient One-Pot Synthesis of COS-Based Block Copolymers by Using Organic Lewis Pairs
A one-pot synthesis of block copolymer with regioregular poly(monothiocarbonate) block
is described via metal-free catalysis. Lewis bases such as guanidine, quaternary onium salts,
and Lewis acid triethyl borane (TEB) were equivalently combined and used as the catalysts. By using polyethylene glycol (PEG) as the macromolecular chain transfer agent (CTA), narrow polydispersity block copolym...
http://www.polymer.cnt//ss/xhzhang/publicationsshow_14180.html |
| |