Improvement of PVK based photorefractive polymer materials by modifying the nonlinear chromophore for the vibration measurements

Author(s):  
K. Yamazaki ◽  
T. Shimura ◽  
T. Akazawa ◽  
T. Mutai ◽  
R. Fujimura ◽  
...  
ChemPhysChem ◽  
2010 ◽  
Vol 11 (2) ◽  
pp. 460-465 ◽  
Author(s):  
Rocco Angelone ◽  
Francesco Ciardelli ◽  
Arturo Colligiani ◽  
Francesco Greco ◽  
Paolo Masi ◽  
...  

Tetrahedron ◽  
2009 ◽  
Vol 65 (23) ◽  
pp. 4513-4520 ◽  
Author(s):  
Enrique Font-Sanchis ◽  
Francisco J. Céspedes-Guirao ◽  
Ángela Sastre-Santos ◽  
Belén Villacampa ◽  
Jesús Orduna ◽  
...  

1997 ◽  
Author(s):  
William E. Moerner ◽  
Anders Grunnet-Jepsen ◽  
C. L. Thompson ◽  
Matthew S. Bratcher ◽  
Robert J. Twieg

Tetrahedron ◽  
2006 ◽  
Vol 62 (9) ◽  
pp. 2102-2109 ◽  
Author(s):  
Luis Martín-Gomis ◽  
Javier Ortiz ◽  
Fernando Fernández-Lázaro ◽  
Ángela Sastre-Santos ◽  
Bevan Elliott ◽  
...  

1998 ◽  
Author(s):  
K.S. West ◽  
J.D. Shakos ◽  
F.A. Wade ◽  
M.D. Rahn ◽  
D.P. West ◽  
...  

1993 ◽  
Author(s):  
Henk J. Bolink ◽  
Victor V. Krasnikov ◽  
George G. Malliaras ◽  
Georges Hadziioannou

Author(s):  
D.T. Grubb

Diffraction studies in polymeric and other beam sensitive materials may bring to mind the many experiments where diffracted intensity has been used as a measure of the electron dose required to destroy fine structure in the TEM. But this paper is concerned with a range of cases where the diffraction pattern itself contains the important information.In the first case, electron diffraction from paraffins, degraded polyethylene and polyethylene single crystals, all the samples are highly ordered, and their crystallographic structure is well known. The diffraction patterns fade on irradiation and may also change considerably in a-spacing, increasing the unit cell volume on irradiation. The effect is large and continuous far C94H190 paraffin and for PE, while for shorter chains to C 28H58 the change is less, levelling off at high dose, Fig.l. It is also found that the change in a-spacing increases at higher dose rates and at higher irradiation temperatures.


Author(s):  
J. Petermann ◽  
G. Broza ◽  
U. Rieck ◽  
A. Jaballah ◽  
A. Kawaguchi

Oriented overgrowth of polymer materials onto ionic crystals is well known and recently it was demonstrated that this epitaxial crystallisation can also occur in polymer/polymer systems, under certain conditions. The morphologies and the resulting physical properties of such systems will be presented, especially the influence of epitaxial interfaces on the adhesion of polymer laminates and the mechanical properties of epitaxially crystallized sandwiched layers.Materials used were polyethylene, PE, Lupolen 6021 DX (HDPE) and 1810 D (LDPE) from BASF AG; polypropylene, PP, (PPN) provided by Höchst AG and polybutene-1, PB-1, Vestolen BT from Chemische Werke Hüls. Thin oriented films were prepared according to the method of Petermann and Gohil, by winding up two different polymer films from two separately heated glass-plates simultaneously with the help of a motor driven cylinder. One double layer was used for TEM investigations, while about 1000 sandwiched layers were taken for mechanical tests.


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