Dielectric normal mode spectroscopy in the ordered and disordered states of diblock copolymers

1992 ◽  
Vol 25 (20) ◽  
pp. 5306-5312 ◽  
Author(s):  
B. Stuehn ◽  
F. Stickel
Keyword(s):  
Normal Mode ◽  
Diblock Copolymers ◽  
Mode Spectroscopy

scholarly journals Normal-Mode Spectroscopy of a Single-Bound-Atom–Cavity System

2005 ◽  
Vol 94 (3) ◽  
Author(s):  
P. Maunz ◽  
T. Puppe ◽  
I. Schuster ◽  
N. Syassen ◽  
P. W. H. Pinkse ◽  
...  
Keyword(s):  
Normal Mode ◽  
Cavity System ◽  
Mode Spectroscopy

Normal-mode spectroscopy of a single atom in an optical cavity.

2004 ◽  
Author(s):  
P. Maunz ◽  
T. Puppe ◽  
I. Schuster ◽  
N. Syassen ◽  
P.W.H. Pinkse ◽  
...  
Keyword(s):  
Normal Mode ◽  
Optical Cavity ◽  
Single Atom ◽  
Mode Spectroscopy

Composition Fluctuation Effects on Dielectric Normal-Mode Relaxation in Diblock Copolymers. 1. Weak Segregation Regime

1994 ◽  
Vol 27 (13) ◽  
pp. 3543-3552 ◽  
Author(s):  
K. Karatasos ◽  
S. H. Anastasiadis ◽  
A. N. Semenov ◽  
G. Fytas ◽  
M. Pitsikalis ◽  
...  
Keyword(s):  
Normal Mode ◽  
Diblock Copolymers ◽  
Composition Fluctuation ◽  
Fluctuation Effects

Study of subchain dynamics by dielectric normal-mode spectroscopy: butadiene-isoprene block copolymers

1991 ◽  
Vol 24 (21) ◽  
pp. 5843-5850 ◽  
Author(s):  
Keiichiro Adachi ◽  
Isao Nishi ◽  
Hisaaki Doi ◽  
Tadao Kotaka
Keyword(s):  
Block Copolymers ◽  
Normal Mode ◽  
Mode Spectroscopy

Comparative Dielectric Studies of Segmental and Normal Mode Dynamics of Poly(oxybutylene) and Poly(oxyethylene)−Poly(oxybutylene) Diblock Copolymers

2000 ◽  
Vol 33 (12) ◽  
pp. 4581-4595 ◽  
Author(s):  
Apostolos Kyritsis ◽  
Polycarpos Pissis ◽  
Shao-Min Mai ◽  
Colin Booth
Keyword(s):  
Normal Mode ◽  
Diblock Copolymers ◽  
Dielectric Studies

Composition Fluctuation Effects on Dielectric Normal-Mode Relaxation in Diblock Copolymers. 2. Disordered State in Proximity to the ODT and Ordered State

1996 ◽  
Vol 29 (4) ◽  
pp. 1326-1336 ◽  
Author(s):  
K. Karatasos ◽  
S. H. Anastasiadis ◽  
G. Floudas ◽  
G. Fytas ◽  
S. Pispas ◽  
...  
Keyword(s):  
Normal Mode ◽  
Diblock Copolymers ◽  
Composition Fluctuation ◽  
Fluctuation Effects ◽  
Ordered State

Normal-mode spectroscopy of a single atom trapped in a cavity

2006 ◽  
Author(s):  
T. Puppe ◽  
R. Maunz ◽  
L. Schuster ◽  
N. Syassen ◽  
P.W.H. Pinkse ◽  
...  
Keyword(s):  
Normal Mode ◽  
Single Atom ◽  
Mode Spectroscopy

Morphological behavior of compatibilized ternary blends prepared by mechanical mixing

1993 ◽  
Vol 51 ◽  
pp. 1200-1201
Author(s):  
S.D. Smith ◽  
R.J. Spontak ◽  
D.H. Melik ◽  
S.M. Buehler ◽  
K.M. Kerr ◽  
...  
Keyword(s):  
Interfacial Adhesion ◽  
Diblock Copolymers ◽  
Ternary Blends ◽  
Mechanical Mixing ◽  
Design Considerations ◽  
Covalently Bonded ◽  
Homopolymer Blends ◽  
Emulsifying Agent ◽  
Surface Active ◽  
Low Entropy

When blended together, homopolymers A and B will normally macrophase-separate into relatively large (≫1 μm) A-rich and B-rich phases, between which exists poor interfacial adhesion, due to a low entropy of mixing. The size scale of phase separation in such a blend can be reduced, and the extent of interfacial A-B contact and entanglement enhanced, via addition of an emulsifying agent such as an AB diblock copolymer. Diblock copolymers consist of a long sequence of A monomers covalently bonded to a long sequence of B monomers. These materials are surface-active and decrease interfacial tension between immiscible phases much in the same way as do small-molecule surfactants. Previous studies have clearly demonstrated the utility of block copolymers in compatibilizing homopolymer blends and enhancing blend properties such as fracture toughness. It is now recognized that optimization of emulsified ternary blends relies upon design considerations such as sufficient block penetration into a macrophase (to avoid block slip) and prevention of a copolymer multilayer at the A-B interface (to avoid intralayer failure).

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