Results 311 to 320 of about 577,536 (384)

Self-Assembly of Copolymer Micelles: Higher-Level Assembly for Constructing Hierarchical Structure.

Chemical Reviews, 2020
In recent years, the self-assembly of copolymer micelles has become an appealing frontier of supramolecular chemistry as a strategy to construct superstructures with multiple levels of complexity.
Yingqing Lu, Jiaping Lin, Liquan Wang, Liangshun Zhang, Chunhua Cai   +4 more
semanticscholar   +1 more source

Achieving Over 15% Efficiency in Organic Photovoltaic Cells via Copolymer Design

Advances in Materials, 2019
Ternary blending and copolymerization strategies have proven advantageous in boosting the photovoltaic performance of organic solar cells. Here, 15% efficiency solar cells using copolymerization donors are demonstrated, where the electron‐withdrawing ...
Yong Cui, H. Yao, Ling Hong, Zhang Tao, Ye Xu, Kaihu Xian, B. Gao, Jinzhao Qin, Jianqi Zhang, Zhixiang Wei, Jianhui Hou   +10 more
semanticscholar   +1 more source

Poly(norbornene) anion conductive membranes: homopolymer, block copolymer and random copolymer properties and performance

Journal of Materials Chemistry A, 2020
A systematic comparison between random and block copolymer membrane properties showed the suitability of random copolymer membranes.
Mrinmay Mandal, Garrett Huang, N. Hassan, W. Mustain, P. Kohl   +4 more
semanticscholar   +1 more source

Phase separations in a copolymer–copolymer mixture

Journal of Physics: Condensed Matter, 2005
We propose a three-order-parameter model to study the phase separations in a diblock copolymer–diblock copolymer mixture. The cell dynamical simulations provide rich information about the phase evolution and structural formation, especially the appearance of onion-rings. The parametric dependence and physical reason for the domain growth of onion-rings
Yu-qiang Ma, Guojun Jin, Jin-jun Zhang, Jin-jun Zhang   +3 more
openaire   +2 more sources

Synthesis of copolymers. II. Copolymers of butadiene and of isoprene [PDF]

Die Makromolekulare Chemie, 1972
AbstractThe compositions of copolymers formed by reacting butadiene or isoprene (M) with lithium in tetrahydrofuran in the presence of varying amounts of alkyl dihalides have been studied. When butadiene was reacted with dibromo‐p‐xylene, it was found that the dihalide predominantly dimerised by a WURTZ condensation mechanism before reacting with ...
D. H. Richards, A. V. Cunliffe, W. J. Hubbert   +2 more
openaire   +1 more source

Block Copolymer Vitrimers.

Journal of the American Chemical Society, 2019
In this report, we merge block copolymers with vitrimers in an effort to realize the prospect of higher-order, nanoscale control over associative crosslink exchange and flow.
Jacob J. Lessard, G. Scheutz, S. Sung, Kayla A. Lantz, Thomas H. Epps, B. Sumerlin   +5 more
semanticscholar   +1 more source

Multiblock copolymers at interfaces

Il Nuovo Cimento D, 1994
We consider the configurations and the various regimes when an alternating, symmetric, multiblock copolymer made of successive sequences of A and B monomers with equal lengthZ is at the interface between two immiscible solvents that are respectively good for one of the sequences and poor for the other one.
Leclerc, Eléa, Daoud, M., Douillard, Roger   +2 more
openaire   +4 more sources

Thermoresponsive copolymer microgels

Journal of Materials Chemistry B, 2013
Colloidal aqueous microgels have attracted notable attention due to their possible applications in both polymer chemistry and the (bio)material sector. Due to their soft internal network structure and their response to different external stimuli, they are suitable as carrier systems for different kinds of molecules (e.g.
Hertle, Yvonne, Hellweg, Thomas
openaire   +3 more sources

Computer simulation of copolymer-copolymer and copolymer-homopolymer mixtures with a single interaction energy

Macromolecules, 1989
Etude des interactions dans des melanges copolymere/polymere (A x B 1 - x /B) et copolymere/copolymere A x B 1 - y contenant des quantites egales des 2 composantes en fonction des compositions du copolymere, respectivement x et|x-y|, et des energies d'interaction segmentaire a l'aide d'un modele reticulaire carre ...
William J. MacKnight, Peter Cifra, Frank E. Karasz   +2 more
openaire   +2 more sources

Miscibility Study in Fluorinated Tetrafluoroethylene Copolymer−Copolymer Blends

Macromolecules, 2001
The miscibility of random fluorinated tetrafluoroethylene copolymers is investigated by differential scanning calorimetry (DSC) and X-ray diffraction (XRD). In particular, mixtures composed of poly(tetrafluoroethylene)-co-(hexafluoropropylene) (FEP) containing 1 mol % of comonomer and poly(tetrafluoroethylene)-co-(perfluoromethylvinyl ether) (PFMVE ...
R. PUCCIARIELLO, V. VILLANI, RUIZ DE BALLESTEROS, ODDA   +2 more
openaire   +3 more sources