support provided by the National Natural Science Foundation of China(Nos.51875172 and 52105180);Zhongyuan Science and Technology Innovation Leadership Program(No.214200510024).
Organic molybdenum lubricant additive like molybdenum dialkyl dithiocarbamate(MoDTC)can cause wear acceleration of diamond-like carbon(DLC)coating coupled with steel under boundary lubrication,which hinders its indust...
This work was funded by the Foundation(No.LJ2020030)from the Project of the Education Department of Liaoning Province,China.
Oil dispersible suspension concentrates are safe,green,and environmentally friendly formulations.Problems such as layering,pasting,and bottoming are frequently encountered during the production,storage,and transportat...
financially supported by the National Natural Science Foundation of China(Nos.U21A20279 and 21774119)。
We report herein the cationic polymerization of isobutylene(IB)under mild conditions is realized with a new binary initiation system generated by simply mixing a Lewis super acid Al(C_(6)F_(5))_(3) and a substituted p...
A novel polyolefin called poly(styrene-block-isobutylene-block-styrene)(“SIBS”)originated from Joseph P.Kennedy’s laboratory at the University of Akron(Akron,Ohio,United States)and was developed as a biomaterial fo...
by the National Natural Science Foundation of China(Nos.51521062 and 21574007).
The novel amphiphilic acylated dextran-g-polyisobutylene(AcyDex-g-PIB)graft copolymers with different branch lengths(A4nPtB,2600-5800 g/mol)and grafti ng numbers(GN,5-28 per 1000 Dex mono saccharide)were successfully ...
the National Natural Science Foundation of China(Nos.21574007 and 51521062);the Fundamental Research Funds for the Central Universities(Nos.XK1802-2 and XK1802-1).
The novel amphiphilic graft copolymers with hydrophilic hard polar hydroxypropyl cellulose(HPC)backbone and hydrophobic soft nonpolar polyisobutylene(PIB)branches have been successfully synthesized through nucleophili...
financially supported by the National Science Foundation (No. IIP-1434014) (Accelerating Innovation Research);Support by the Breast Cancer Innovation Foundation was also acknowledged
This work investigates the effect of reaction conditions on the copolymerization of isobutylene (IB) with alloocimene (Allo) in methyl chloride (MeCl) using AlCh and ethylaluminum dichloride (EtAlCh) as coinitiators a...
The cationic polymerization of C4 mixed feed and isobutylene co-initiated by AlCl3xOiPr2,iBuAlC12xnOiPr2, and [emim]Cl- FeCl3xnOiPr2 ([emim]Cl: 1 -ethyl-3-methylimidazolium chloride) has been investigated. AlCl3xOiPr2...
An alternative cationic polymerization method is developed to produce high molecular weight polyisobutylene (HM-PIB) with molecular weights above 5×10^5g/mol. The method involves micelle formation via functionalized ...
financially supported by the National Natural Science Foundation of China (No. 51573020);Beijing Natural Science Foundation (No. 2172022);Scientific Research Project of Beijing Educational Committee (No. KM201810017008);Project of Petrochina (No. kywx-18-002);URT program (No. 2018J00074)
The low-activity cationic monomer tert-butyl-dimethyl-(4-methyl-pent-4-enyloxy)-silane was synthesized by Grignard reaction and hydroxyl-protection reaction. Living polyisobutylene chains were initially synthesized by...