Results 1 to 10 of about 109,194 (279)

Co-existing morphologies of lamellae and double arrays of cylinders by A1BA2C tetrablock terpolymer

Giant, 2023
Here, we observed, via small-angle X-ray scattering and transmission electron microscopy, co-existing morphologies of lamellae and cylinders by precisely tailoring the volume fraction of each block in polystyrene-b-polyisoprene-b-polystyrene-b-poly(2 ...
Hyeongkeon Yoon, Qingshu Dong, Chungryong Choi, Seonghyeon Ahn, Soyeong Park, Eunyoung Kim, Weihua Li, Jin Kon Kim   +7 more
doaj   +1 more source

Self-assembled pagoda-like nanostructure-induced vertically stacked split-ring resonators for polarization-sensitive dichroic responses

Nano Convergence, 2022
Stacked split-ring resonators (SSRR) arrays exhibiting polarization-sensitive dichroic responses in both visible and near-infrared wavelengths are realized over a centimeter-scale large area.
Sanghoon Kim, Chunghwan Jung, Jungho Mun, Mooseong Kim, Hyeongkeon Yoon, Junho Jang, Myeongcheol Go, Jaeyong Lee, Junsuk Rho, Jin Kon Kim   +9 more
doaj   +1 more source

Phospholipid-mimicking block, graft, and block-graft copolymers for phase-transition microbubbles as ultrasound contrast agents

Frontiers in Pharmacology, 2022
Background: Lipid and polymer microbubbles (MBs) are widely used as ultrasound contrast agents in clinical diagnosis, and possess great potential in ultrasound-mediated therapy due to their drug loading function.
Jianbo Huang, Hong Wang, Lei Huang, Yuqing Zhou   +3 more
doaj   +1 more source

Solvent-Free Synthesis of Multifunctional Block Copolymer and Formation of DNA and Drug Nanocarriers

Nanomaterials, 2023
The synthesis of well-defined multifunctional polymers is of great importance for the development of complex materials for biomedical applications.
Radostina Kalinova, Kirilka Mladenova, Svetla Petrova, Jordan Doumanov, Ivaylo Dimitrov   +4 more
doaj   +1 more source

Spraying of Ultrathin Isoporous Block Copolymer Membranes—A Story about Challenges and Limitations

Membranes, 2020
Isoporous membranes can be prepared by a combination of self-assembly of amphiphilic block copolymers and the non-solvent induced phase separation process.
Thomas Bucher, Juliana Isabel Clodt, Clarissa Abetz, Barbara Bajer, Volkan Filiz   +4 more
doaj   +1 more source

Synthesis of Block Copolymer Brush by RAFT and Click Chemistry and Its Self-Assembly as a Thin Film

Molecules, 2020
A well-defined block copolymer brush poly(glycidyl methacrylate)-graft-(poly(methyl methacrylate)-block- poly(oligo(ethylene glycol) methyl ether methacrylate)) (PGMA-g-(PMMA-b-POEGMA)) is synthesized via grafting from an approach based on a combination ...
Hajeeth Thankappan, Mona Semsarilar, Suming Li, Yung Chang, Denis Bouyer, Damien Quemener   +5 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   +2 more sources

Mesoscale Block Copolymers

Advanced Materials, 2018
AbstractMaterials composed of well‐defined mesoscale building blocks are ubiquitous in nature, with noted ability to assemble into hierarchical structures possessing exceptional physical and mechanical properties. Fabrication of similar synthetic mesoscale structures will offer opportunities for precise conformational tuning toward advantageous bulk ...
Dylan M, Barber, Alfred J, Crosby, Todd, Emrick   +2 more
openaire   +3 more sources

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

Evaluation of graphene incorporation for mechanical properties of polypropylene composites [PDF]

Polímeros
Graphene nanoparticles (GnP) were selected as an alternative reinforcing nanofillers, which enhances the mechanical properties of polypropylene (PP-homo and PP-block copolymer).
Júlio Harada, Claudio Aparecido Marcondes, Juliana Arquinto, Maria da Conceição Costa Pereira, Leonardo Gondim de Andrade e Silva   +4 more
doaj   +1 more source