Results 21 to 30 of about 250,446 (300)

Composite membranes for proton exchange membrane fuel cells based on methyl methacrylate-co-maleimide /phosphotungstic acid [PDF]

شیمی کاربردی روز, 2018
Poly(methyl methacrylate-co-nitrophenyl maleimide) (MMA-co-NMI) and poly(methyl‌‌‌‌ methacrylate-co-hydroxyphenyl maleimide)‌‌‌‌‌ (MMA-co-HMI) copolymers were synthesized using free radical polymerization of MMA with a new MI monomer containing phenyl ...
zahra seidzadeh, Fariborz Atabaki, negin Ghaemi, Mohammad Nasiri   +3 more
doaj   +1 more source

Integration of Machine Learning and Coarse-Grained Molecular Simulations for Polymer Materials: Physical Understandings and Molecular Design

Frontiers in Chemistry, 2022
In recent years, the synthesis of monomer sequence-defined polymers has expanded into broad-spectrum applications in biomedical, chemical, and materials science fields.
Danh Nguyen, Lei Tao, Ying Li, Ying Li
doaj   +1 more source

Tunable biohybrid hydrogels from coacervation of hyaluronic acid and PEO‐based block copolymers [PDF]

, 2020
Accurately tuning the macroscopic properties of biopolymer‐based hydrogels remains challenging due to the ill‐defined molecular architecture of the natural building blocks.
Gopez, Jeffrey D., Klinger, Daniel, Mabesoone, Mathijs F. J., Paulus, Ilka E.   +3 more
core   +1 more source

Synthesis and properties of a new AB-cross-linked copolymer membrane system [PDF]

, 1993
The alcohol permeability and permselectivity properties as well as the morphology of membranes made of a newly developed AB-cross-linked copolymer system composed of elastomeric and glassy components were investigated.
Kerres, J.A., Strathmann, H.
core   +2 more sources

Multivalent Allylammonium-Based Cross-Linkers for the Synthesis of Homogeneous, Highly Swelling Diallyldimethylammonium Chloride Hydrogels

Gels, 2022
N,N’-methylenebisacrylamide (BIS) is a very popular cross-linker for the radical polymerisation in water. It is highly reactive but prone to alkaline hydrolysis and suffers from a low solubility.
Tim B. Mrohs, Oliver Weichold
doaj   +1 more source

Substantially Enhanced Stereocomplex Crystallization of Poly(L-lactide)/Poly(D-lactide) Blends by the Formation of Multi-Arm Stereo-Block Copolymers

Crystals, 2022
Stereocomplex-type polylactide (SC-PLA) created by alternate packing of poly(L-lactide) (PLLA) and poly(D-lactide) (PDLA) chains in a crystalline state has emerged as a growingly popular engineering bioplastic that possesses excellent hydrolytic ...
Xingyuan Diao, Xiaonan Chen, Shihao Deng, Hongwei Bai   +3 more
doaj   +1 more source

Aliphatic Anion Exchange Ionomers with Long Spacers and No Ether Links by Ziegler–Natta Polymerization: Properties and Alkaline Stability

Molecules, 2022
In this work we report the synthesis of poly(vinylbenzylchloride-co-hexene) copolymer grafted with N,N-dimethylhexylammonium groups to study the effect of an aliphatic backbone without ether linkage on the ionomer properties.
Raul Andres Becerra-Arciniegas, Riccardo Narducci, Gianfranco Ercolani, Luca Pasquini, Philippe Knauth, Maria Luisa Di Vona   +5 more
doaj   +1 more source

Preparation of Solid Self-Nanoemulsifying Drug Delivery Systems (S-SNEDDS) by Co-Extrusion of Liquid SNEDDS and Polymeric Carriers—A New and Promising Formulation Approach to Improve the Solubility of Poorly Water-Soluble Drugs

Pharmaceuticals, 2022
The present study focused on a new formulation approach to improving the solubility of drugs with poor aqueous solubility. A hot melt extrusion (HME) process was applied to prepare drug-loaded solid self-nanoemulsifying drug delivery systems (S-SNEDDS ...
Fabian-Pascal Schmied, Alexander Bernhardt, Sandra Klein   +2 more
doaj   +1 more source

Simultaneous fabrication of line and dot dual nanopatterns using miktoarm block copolymer with photocleavable linker

Nature Communications, 2017
Block copolymers that form nanodomains and are used in nanolithography usually do not form nanopatterns with multiple shapes. Here the authors report a block copolymer that allows for UV- induced cleavage of one arm and demonstrate the transformation of ...
Chungryong Choi, Jichoel Park, Kanniyambatti L. Vincent Joseph, Jaeyong Lee, Seonghyeon Ahn, Jongheon Kwak, Kyu Seong Lee, Jin Kon Kim   +7 more
doaj   +1 more source

Valorization of cashew industry wastewater as a carbon and nutrient source for the microbial growth and production of the polyhydroxyalkanoates: A potential biopolymer by Bacillus species

Cogent Engineering, 2023
Wide applications of conventional plastics across the world have made its production inevitable. To avoid the ecocide occurring due to conventional plastics, studies on the production and extraction of renowned biopolymers like polyhydroxyalkanoates ...
Vrunda N Katagi, Manasa S, Raghavendra P, Sohani G Bhat, Divyashree M S   +4 more
doaj   +1 more source