Study on the fluorescence depolarization of a chromophore attached to polymer chain end. Aggregation behaviours of poly(γ-benzyl l-glutamate) in semi-concentrated solution up to liquid crystal region

1986 ◽  
Vol 22 (10) ◽  
pp. 827-829
Author(s):  
Hideharu Ushiki ◽  
Fumahiko Tanaka ◽  
Itaru Mita
Keyword(s):  
Liquid Crystal ◽  
Polymer Chain ◽  
Fluorescence Depolarization ◽  
Concentrated Solution ◽  
Crystal Region

Local mobility of polymer chain grafted onto polyethylene monitored by fluorescence depolarization

1997 ◽  
Vol 275 (3-4) ◽  
pp. 203-210 ◽  
Author(s):  
Satoshi Tsuneda ◽  
Toshihiro Endo ◽  
Kyoichi Saito ◽  
Kazuyuki Sugita ◽  
Kazuyuki Horie ◽  
...  
Keyword(s):  
Polymer Chain ◽  
Fluorescence Depolarization ◽  
Local Mobility

Computer simulation of local dynamics of a polymer chain in the orienting field of the liquid crystal type

1991 ◽  
Vol 33 (6) ◽  
pp. 1116-1125 ◽  
Author(s):  
A.A. Darinskii ◽  
Yu.Ya. Gotlib ◽  
A.V. Lyulin ◽  
L.M. Neyelov
Keyword(s):  
Computer Simulation ◽  
Liquid Crystal ◽  
Polymer Chain ◽  
Local Dynamics ◽  
Crystal Type

scholarly journals Controllable Liquid Crystal Micro Tube Laser

Crystals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1510
Author(s):  
Jia-De Lin ◽  
Po-Chen Wu ◽  
Ting-Shan Mo ◽  
Bing-Yau Huang ◽  
Chie-Tong Kuo ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Azo Dyes ◽  
Emission Wavelength ◽  
Random Lasing ◽  
Uv Sensors ◽  
Crystal Region

This study demonstrates controllable random lasing emissions in a dye-doped nematic liquid crystal (DDNLC)-infiltrated microcapillary. The emission wavelength of the micro tube laser can be adjusted by changing the focusing position of the pumped pulses on the center or the periphery of the liquid crystal region of the microcapillary. In addition, with doping azo-dyes in the DDNLC of the micro tube laser, optical controllability of the lasing intensity and wavelength can be further achieved. The controllable micro tube laser may find highly widespread photonic applications in multicolor emitting sources, and vibration and UV sensors.

Degradation of PBS Introducing Crosslink by Glycerol

2014 ◽  
Vol 934 ◽  
pp. 104-109
Author(s):  
Er Juan Zhi ◽  
Li Gao ◽  
Ping Li Wang ◽  
Jun Hui Ji
Keyword(s):  
Crystal Structure ◽  
Polymer Chain ◽  
Amorphous Region ◽  
Aliphatic Chain ◽  
Sequence Distribution ◽  
Crystal Region

A series of poly (butylenes succinate) with low Glycerol (GL) fraction ranging from 0 to 6‰ were synthesized by two step melting condensation. By this method, some three-dimentional branch or crosslink structure was introduced to the linear aliphatic chain of PBS. The sequence distribution, GL fraction, crystal structure and degradability were investigated. The degrability of PBS enhanced when GL was led into polymer chain as the crystalline (χc) decreased with GL increasing. And the degradation first happened in amorphous region and then crystal region.

The Liquid Crystal Region in Cesium Soaps

1984 ◽  
Vol 39 (4) ◽  
pp. 362-365 ◽  
Author(s):  
Manlio Sanesi ◽  
Paolo Franzosini
Keyword(s):  
Differential Scanning Calorimetry ◽  
Liquid Crystal ◽  
Scanning Calorimetry ◽  
Crystal State ◽  
Enthalpy Changes ◽  
Present Information ◽  
Crystal Region

The temperatures and enthalpy changes pertinent to the fusion and clearing processes in the linear cesium alkanoates from tridecanoate to eicosanoate were measured by differential scanning calorimetry. The present information along with data previously taken on the lower homologs allows one to draw the boundaries of the region where cesium soaps can exist in the liquid crystal state.

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