scholarly journals Supramolecular design of Benzene-1,3,5-Tricarboxamide with Hydrophobic Alkyl side chains toward long-range liquid crystalline properties

2019 ◽  
Vol 1282 ◽  
pp. 012068
Author(s):  
H O Lintang ◽  
J Matmin ◽  
L Yuliati
Keyword(s):  
Long Range ◽  
Liquid Crystalline ◽  
Side Chains ◽  
Alkyl Side Chains

Layered structure and Xe sorption and diffusion properties of low-density liquid-crystalline polyesters with n-alkyl side chains

2005 ◽  
Vol 739 (1-3) ◽  
pp. 19-26 ◽  
Author(s):  
Hiroaki Yoshimizu ◽  
Mitsuhiro Tsukahara ◽  
Tomoyuki Suzuki ◽  
Jiro Toida ◽  
Aisuke Ando ◽  
...  
Keyword(s):  
Layered Structure ◽  
Liquid Crystalline ◽  
Side Chains ◽  
Low Density ◽  
Alkyl Side Chains ◽  
And Diffusion ◽  
Diffusion Properties

scholarly journals The Role of Liquid Crystalline Side Chains for Long-range Ordering in the Block Copolymer Thin Films

2020 ◽  
Vol 33 (5) ◽  
pp. 529-536
Author(s):  
Lei Dong ◽  
Alvin Chandra ◽  
Kevin Wylie ◽  
Ryuichi Nakatani ◽  
Yuta Nabae ◽  
...  
Keyword(s):  
Thin Films ◽  
Block Copolymer ◽  
Long Range ◽  
Liquid Crystalline ◽  
Side Chains ◽  
Long Range Ordering

Long-Channel Cavity and Gas Diffusion in Liquid-Crystalline Polyester withn-Alkyl Side Chains

2005 ◽  
Vol 44 (23) ◽  
pp. 8694-8698 ◽  
Author(s):  
Masanori Matsui ◽  
Yuji Yamane ◽  
Shigeki Kuroki ◽  
Isao Ando ◽  
Kai Fu ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Gas Diffusion ◽  
Side Chains ◽  
Alkyl Side Chains ◽  
Long Channel ◽  
Liquid Crystalline Polyester

Order To Disorder Transition at The Polymer-Air Interface for Hydrophobic Octadecyl Side Chain Copolymers

2000 ◽  
Vol 661 ◽  
Author(s):  
Keshav S. Gautam ◽  
Ali Dhinojwala
Keyword(s):  
Transition Temperature ◽  
Molecular Orientation ◽  
Crystalline State ◽  
Liquid Crystalline ◽  
Side Chain ◽  
Side Chains ◽  
Disorder Transition ◽  
Sum Frequency ◽  
Air Interface ◽  
Alkyl Side Chains

ABSTRACTMolecular orientation of octadecyl alkyl side chains at the poly (vinyl octadecyl carbamates-co-vinyl acetate) polymer-air interface has been studied using surface sensitive sum frequency generation (SFG) spectroscopy. At 280C, below the side chain crystalline transition temperature, the SFG spectra show strong methyl vibrations indicating ordered alkyl side chains at the polymer-air interface. In the liquid state (980C), the SFG spectra show higher contributions from the methylene vibrations indicating higher gauche defects at the interface. This surface order to disorder transition is gradual and spans over a broad temperature range (50-900C), where the bulk is in the smectic liquid crystalline state.

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