Utilization of CO2 for the production fine chemicals has become a research hotspot long time. In order to make use CO2, we developed highly efficient heterogeneous catalyst (denoted as Pd@POPs) N-formylation reaction amine and under mild conditions. The Pd was based on porous organic polymer derived from solvothermal polymerization vinyl-functionalized PPh3. A series characterizations comparati...

Supramolecular polymers are a class of materials characterized by a repetition of monomer units held together by non-covalent forces such as metal coordination, π–π interactions and hydrogen bonding1–4. Compared with their covalent counterparts the unique properties of these polymers have attracted considerable attention, for instance, the self-healing ability that arises from the thermodynamic...

During past few years, ionic liquids have kept attracting much attention as “green and designer” media for chemical reactions. Room-temperature ionic liquids have emerged as a potential replacement for organic solvents in catalytic processes on both laboratory and industrial scales (Holbrey & Seddon, 1999b). Literature reports on a wide range of reactions including advances in alkylation reacti...

as we know oxygen is one of the main inhibitors of polymerization of vinyl acetate. therefore, nitrogen is used in order to make sure of system's high purity. to maintain purity it is necessary to find out the rate of the oxygensolution in polymerization system under different conditions of polymerization. it is concluded that incoming nitrogen to the system would remove the oxygen from th...

Actin polymerization has been shown to be sufficient to propel curved objects, for example beads and vesicles coated with the Listeria monocytogenes protein ActA. Recent studies suggest that actin polymerization on flat surfaces can also provide the propulsive force to push them forward.

A multiedge study of the local structure lithium borate glasses and melts has been carried out using X-ray Raman scattering (XRS) as a function temperature. Thanks to wide range compositions, from pure B2O3 up metaborate composition, we are able finely interpret modifications environment both boron oxygen atoms in terms coordination number, formation nonbridging oxygens (NBOs), polymerization d...