Photoresponsive behavior and self-organization of azobenzene-containing block copolymers

RSC Advances ◽  
2014 ◽  
Vol 4 (45) ◽  
pp. 23585 ◽  
Author(s):  
Shu-Chi Tsao ◽  
Chieh-Tsung Lo
Keyword(s):  
Block Copolymers ◽  
Self Organization

Self-organization processes in polysiloxane block copolymers, initiated by modifying fullerene additives

2017 ◽  
Vol 59 (8) ◽  
pp. 1656-1661
Author(s):  
A. P. Voznyakovskii ◽  
V. Kh. Kudoyarova ◽  
M. F. Kudoyarov ◽  
M. Ya. Patrova
Keyword(s):  
Block Copolymers ◽  
Self Organization

scholarly journals Self-organization of gel networks formed by block copolymer stars

Soft Matter ◽  
2019 ◽  
Vol 15 (17) ◽  
pp. 3527-3540 ◽  
Author(s):  
Ioana C. Gârlea ◽  
Diego Jaramillo-Cano ◽  
Christos N. Likos
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Self Organization ◽  
Network Architectures

Block copolymers stars can self-assemble to form a variety of equilibrium network architectures, due to their reconfigurability.

Self-organization and aggregation of amphiphilic block copolymers of N-vinylpyrrolidone—block-2,2,3,3-tetrafluoropropylmethacrylate at interfaces

2014 ◽  
Vol 63 (8) ◽  
pp. 1823-1836 ◽  
Author(s):  
O. G. Zamyshlyayeva ◽  
O. S. Lapteva ◽  
M. A. Baten’kin ◽  
Yu. D. Semchikov ◽  
N. B. Mel’nikova
Keyword(s):  
Block Copolymers ◽  
Amphiphilic Block Copolymers ◽  
Self Organization

scholarly journals Synthesis and self-organization of PPV-based block copolymers for photonic applications

2001 ◽  
Vol 121 (1-3) ◽  
pp. 1541-1542 ◽  
Author(s):  
B. de Boer ◽  
U. Stalmach ◽  
C. Melzer ◽  
G. Hadziioannou
Keyword(s):  
Block Copolymers ◽  
Self Organization

Electroactive and Photoactive Rod-Coil Block Copolymers: Self-Organization and Photophysical Properties

1997 ◽  
Vol 488 ◽  
Author(s):  
X. Linda Chen ◽  
Samson A. Jenekhe
Keyword(s):  
Thin Films ◽  
Block Copolymers ◽  
Photophysical Properties ◽  
Block Size ◽  
Hole Transport ◽  
Transport Layer ◽  
Self Organization ◽  
Hole Transport Layer ◽  
High Quantum Efficiency ◽  
Free Hole

AbstractTwo series of new electroactive and photoactive coil-rod-coil and rod-coil-rod triblock copolymers, poly (pentadecamethylene carboxester)-block - poly(p-phenylene benzobisthiazole) - block - poly (pentadecamethylene carboxester) (1), and poly(2,6-benzoxazole)-block poly(benzobisthiazole decamethylene)-block-poly(2,6-benzoxazole) (2), were synthesized, characterized, and used to investigate the self-assembly properties of rod-coil block copolymers. The progressive band narrowing of the absorption spectrum of thin films of 1 confirmed the effects of spatial confinement with increasing coil block size. Photoluminescence studies of thin films of 1 and 2 showed the effects of self-organization, annealing at 110 °C, block lengths, and composition on photophysical properties. Bilayer photoreceptors consisting of a layer of block copolymer as the charge generation layer and a layer of tris(p-tolyl)amine dispersed in polycarbonate as a trap-free hole transport layer were oberved to have high quantum efficiency, good photosensitivity and good dark decay.

Electron tomography of microstructural elements in strongly segregated block copolymers

1993 ◽  
Vol 51 ◽  
pp. 888-889
Author(s):  
Richard J. Spontak ◽  
Steven D. Smith ◽  
David A. Agard
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Block Copolymers ◽  
Electron Tomography ◽  
The Other ◽  
Self Organization ◽  
Periodic Surfaces ◽  
Transmission Electron ◽  
Strong Segregation ◽  
Double Diamond

Block copolymers are composed of long contiguous sequences (blocks) of chemically dissimilar monomer species. By themselves or in microphase-separated blends, these materials readily undergo self-organization into either disordered micelles or ordered morphologies, much in the same way as do small-molecule amphiphiles. In the strong-segregation regime, wherein only repulsive monomer interactions and periodic morphologies prevail, a copolymer can assemble into spherical or cylindrical dispersions of one block in a continuous matrix of the other or alternating lamellae. Recent efforts have also shown that an ordered bicontinuous double-diamond morphology (OBDD) exists between the cylindrical and lamellar morphologies. Ongoing studies continue to reveal the existence of other non-classical morphologies, such as the lamellar catenoid, in both pure copolymers and in blends. Attempts to elucidate the 3-D structure of these materials have relied upon computer simulation of idealized periodic surfaces and comparison between “slices” of simulated structures with projections from transmission electron microscopy (TEM).

Synthesis and Self-Organization of Poly(propylene oxide)-Based Amphiphilic and Triphilic Block Copolymers

2011 ◽  
Vol 44 (3) ◽  
pp. 583-593 ◽  
Author(s):  
Samuel O. Kyeremateng ◽  
Karsten Busse ◽  
Joachim Kohlbrecher ◽  
Jörg Kressler
Keyword(s):  
Block Copolymers ◽  
Propylene Oxide ◽  
Self Organization ◽  
Poly Propylene
Sign in / Sign up

Export Citation Format

Share Document