Results 31 to 40 of about 66,589 (353)

Controlled Synthesis of Polyphosphazenes with Chain-Capping Agents

Molecules, 2021
N-alkyl phosphoranimines were synthesized via the Staudinger reaction of four different alkyl azides with tris(2,2,2-trifluoroethyl) phosphite. N-adamantyl, N-benzyl, N-t-butyl, and N-trityl phosphoranimines were thoroughly characterized and evaluated as
Robert A. Montague, Krzysztof Matyjaszewski   +1 more
doaj   +1 more source

?2-Microglobulin Amyloid Fibril-Induced Membrane Disruption Is Enhanced by Endosomal Lipids and Acidic pH [PDF]

, 2014
Although the molecular mechanisms underlying the pathology of amyloidoses are not well understood, the interaction between amyloid proteins and cell membranes is thought to play a role in several amyloid diseases. Amyloid fibrils of ?2-microglobulin (?2m)
A Halle, A Ivankin, AD Petelska, AM Smith, B Boland, B Reed, C Cecchi, C Luquain, CJ Sarell, CL Bergstrom, CM Franzin, D Eisenberg, D Freeman, DE Lee, DP Smith, EE Ambroggio, Eric W. Hewitt, F Ferrone, F Gejyo, G van Meer, H Ohvo-Rekila, HD Gallala, HE White, I Benilova, IJ Morten, J Brotheru, J Brotherus, J Pan, J Villanueva, J Zimmerberg, JH Lee, JN Chebukati, JR Wherrett, JW Becker, K Berthelot, K Ditaranto, Kevin W. Tipping, L Milanesi, L Pieri, L Pieri, L Rajendran, M Arrasate, M Bostrom, M Bucciantini, M Duan, M Garcia-Garcia, M Stefani, MF Sciacca, MFM Engel, MFM Sciacca, MP Fogarty, MR Eftink, MY Porter, N Cremades, N Demaurex, N Liguori, Neil A. Ranson, NM Kad, NP Reynolds, Patrick van der Wel, Paul A. Beales, Rebecca Thompson, RF Chen, S Huterer, S Valleix, S Yamamoto, Sheena E. Radford, SL Myers, Sophia C. Goodchild, T Eichner, T Hayakawa, T Kobayashi, T Kobayashi, T Kobayashi, T Kobayashi, T Ookoshi, T Sheynis, T Umeda, Tania Sheynis, TE Frederick, TE Frederick, TL Williams, TL Williams, TP Knowles, TPJ Knowles, TR Jahn, TR Jahn, V Soura, VJ McParland, VN Uversky, Wei-Feng Xue, WF Xue, WF Xue, WF Xue, WF Xue, WF Xue, WG Wood, Y Hirakura, ZS Ji   +98 more
core   +4 more sources

Polymerisation via Zwitterionen

CHIMIA, 1972
Zwitterions and ylides were for a long time considered to be inadequate to initiate ionic polymerization. Recently however, it has been proved that such reactions are possible.
Hans Zweifel, Theodor Völker
doaj   +1 more source

Applications of Hybrid Polymers Generated from Living Anionic Ring Opening Polymerization

Molecules, 2021
Increasingly precise control of polymer architectures generated by “Living” Anionic Ring-Opening Polymerization (Living AROP) is leading to a broad range of commercial advanced material applications, particularly in the area of siloxane macromers.
Jonathan Goff, Santy Sulaiman, Barry Arkles   +2 more
doaj   +1 more source

Research and Review of Polymethyl-Methacrylate Copolymers in the Development of Enhanced Pharmaceutical Delivery Systems [PDF]

, 2020
The following thesis shall primarily explore the current research regarding the implementation of modifiable microscopic and nanoscopic polymer particles as novel pharmaceutical delivery systems. Polymethacrylate-based copolymers, such as EudragitTM, are
Dyess, Jake
core   +1 more source

Viscosity-temperature relationships in the system Na2Si2O5-Na4Al2O5 [PDF]

, 1986
The viscosity-temperature relationships of five melts on the join Na2Si2O2-Na4Al2O5 (5, 10, 20, 30 and 40 mole percent Na4Al2O5) have been measured in air, at 1 atm and 1000–1350°C with a concentric cylinder viscometer.
Dingwell, Donald B.
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Cationic-anionic synchronous ring-opening polymerization

Nature Communications
Chemical reactions with incompatible mechanisms (such as nucleophilic reactions and electrophilic reactions, cationic polymerization and anionic polymerization) are usually difficult to perform simultaneously in one-pot.
Wenli Wang, Xue Liang, Hengxu Liu, Jiamin Zhang, Yuanzu Zhang, Beibei Zhang, Jianhua Li, Yunqing Zhu, Jianzhong Du   +8 more
doaj   +1 more source

Reaction kinetics of cassava starch graft anionic/nonionic-type polymer internal curing agents

Journal of Building Materials and Structures, 2019
Internal curing can help to improve the durability of concrete by preventing and minimizing initial cracks due to autogenous shrinkage and plastic shrinkage.
Rongjin Liu, ZhiHui Sun, Weiheng Xiang, Ping Chen, Ruizhe Zhou   +4 more
doaj   +1 more source

Novel "green" catalysts for controlled ring-opening polymerization of lactide [PDF]

, 2010
Syntéza polylaktidu (PLA) polymerací za otevření kruhu cyklického monomeru (ROP) může být uskutečněna různými způsoby. Literatura uvádí více než 100 katalytických systémů, jejichž pomocí lze polylaktid a jiné biodegradabilní alifatické polyestery získat.
Surman, František
core