Results 11 to 20 of about 69,264 (169)

Discussion on “Aperiodic Copolymers” [PDF]

ACS Macro Letters, 2015
In a recent Viewpoint (ACS Macro Lett. 2014, 3, 1020), J.-F. Lutz brought to the community's attention the need for more informative nomenclature, especially with respect to macromolecules with prescribed but not repeating sequences of monomers. Lutz proposes the use of the term "aperiodic" for this situation.
Rowan, Stuart J., Barner-Kowollik, Christopher, Klumperman, Bert, Gaspard, Pierre, Grubbs, Robert B., Hillmyer, Marc A., Hutchings, Lian R., Mahanthappa, Mahesh K., Moatsou, Dafni, O'Reilly, Rachel K., Ouchi, Makoto, Sawamoto, Mitsuo, Lodge, Timothy P.   +12 more
openaire   +5 more sources

Olefin–Styrene Copolymers [PDF]

Polymers, 2016
In this review are reported some of the most relevant achievements in the chemistry of the ethylene–styrene copolymerization and in the characterization of the copolymer materials. Focus is put on the relationship between the structure of the catalyst and that of the obtained copolymer.
GALDI, NUNZIA, BUONERBA, ANTONIO, OLIVA, Leone   +2 more
openaire   +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

Self-Assembly and Applications of Amphiphilic Hybrid POSS Copolymers

Molecules, 2018
Understanding the mechanism of molecular self-assembly to form well-organized nanostructures is essential in the field of supramolecular chemistry. Particularly, amphiphilic copolymers incorporated with polyhedral oligomeric silsesquioxanes (POSSs) have ...
Hong Chi, Mingyue Wang, Yiting Xiao, Fuke Wang, Joshy K.S   +4 more
doaj   +1 more source

Block Copolymer Nanocontainers

ACS Nano, 2010
Using cell dynamics computer simulation, we perform a systematic study of thin block copolymer films around a nanoparticle. Lamellar-, cylinder-, and sphere-forming block copolymers are investigated with respect to different film thicknesses, particle radii, and boundary conditions at the film interfaces.
Marco Pinna, Stephanie Hiltl, Xiaohu Guo, Alexander Böker, Andrei Zvelindovsky   +4 more
openaire   +3 more sources