Synthesis and properties of novel colorless and thermostable polyimides containing cross‐linkable bulky tetrafluorostyrol pendant group and organosoluble triphenylmethane backbone structure

2020 ◽  
Vol 58 (17) ◽  
pp. 2355-2365
Author(s):  
Bin Li ◽  
Ziran Yan ◽  
Tianyong Zhang ◽  
Shuang Jiang ◽  
Kaijun Wang ◽  
...  
Keyword(s):  
Pendant Group ◽  
Backbone Structure

Cobalt(II) and μ-oxodiiron(III, IV) complexes of salen analog with aromatic thioether pendant group, N, N ′-disalicylidene-2-methyl-4-(2-methylthiophenyl)- 1,2-butanediamine

1988 ◽  
Vol 144 (1) ◽  
pp. 99-103 ◽  
Author(s):  
Kaoru Horiuchi ◽  
Masayuki Koikawa ◽  
Shoichiro Baba ◽  
Hisashi O¯kawa ◽  
Yonezo Maeda ◽  
...  
Keyword(s):  
Pendant Group

Effect of Isoalkyl Lactates as Pendant Group on Poly(acrylic acid)

2014 ◽  
Vol 51 (6) ◽  
pp. 470-480 ◽  
Author(s):  
M. Purushothaman ◽  
P. Santhana Gopala Krishnan ◽  
S. K. Nayak
Keyword(s):  
Acrylic Acid ◽  
Pendant Group ◽  
Poly Acrylic Acid

Fine-diameter Si–B–C–N ceramic fibers enabled by polyborosilazanes with N–methyl pendant group

2021 ◽  
Author(s):  
Xiaoyu Ji ◽  
Hongfei Gao ◽  
Shuai Zhang ◽  
Yan Jia ◽  
Ming-Sheng Ji ◽  
...  
Keyword(s):  
Pendant Group ◽  
Ceramic Fibers

Synthesis of Unsymmetrical Chiral Triaza-18-crown-6 and Diaza-12-crown-4 with a Pendant Group

2000 ◽  
Vol 65 (21) ◽  
pp. 7225-7227 ◽  
Author(s):  
Chi-Wan Lee ◽  
Eun Jin Jung ◽  
Seok Jong Lee ◽  
Kyo Han Ahn ◽  
Kwang S. Kim
Keyword(s):  
Pendant Group

scholarly journals A group of Escherichia coli and Salmonella enterica O antigens sharing a common backbone structure

Microbiology ◽  
2007 ◽  
Vol 153 (7) ◽  
pp. 2159-2167 ◽  
Author(s):  
Wei Wang ◽  
Andrei V Perepelov ◽  
Lu Feng ◽  
Sergei D Shevelev ◽  
Quan Wang ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Salmonella Enterica ◽  
Backbone Structure ◽  
O Antigens

scholarly journals Vertical Orientation of Liquid Crystal on Polystyrene Substituted with n-Alkylbenzoate-p-oxymethyl Pendant Group as a Liquid Crystal Precursor

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2058
Author(s):  
Kyutae Seo ◽  
Hyo Kang
Keyword(s):  
Contact Angle ◽  
Liquid Crystal ◽  
Water Contact Angle ◽  
Polymer Films ◽  
Molar Fraction ◽  
Side Chain ◽  
Pendant Group ◽  
Polymer Modification ◽  
Vertical Orientation ◽  
Water Contact

We synthesized a series of polystyrene derivatives modified with precursors of liquid crystal (LC) molecules via polymer modification reactions. Thereafter, the orientation of the LC molecules on the polymer films, which possess part of the corresponding LC molecular structure, was investigated systematically. The precursors and the corresponding derivatives used in this study include ethyl-p-hydroxybenzoate (homopolymer P2BO and copolymer P2BO#, where # indicates the molar fraction of ethylbenzoate-p-oxymethyl in the side chain (# = 20, 40, 60, and 80)), n-butyl-p-hydroxybenzoate (P4BO), n-hexyl-p-hydroxybenzoate (P6BO), and n-octyl-p-hydroxybenzoate (P8BO). A stable and uniform vertical orientation of LC molecules was observed in LC cells fabricated with P2BO#, with 40 mol% or more ethylbenzoate-p-oxymethyl side groups. In addition, the LC molecules were oriented vertically in LC cells fabricated with homopolymers of P2BO, P4BO, P6BO, and P8BO. The water contact angle on the polymer films can be associated with the vertical orientation of the LC molecules in the LC cells fabricated with the polymer films. For example, vertical LC orientation was observed when the water contact angle of the polymer films was greater than ~86°. Good orientation stability was observed at 150 °C and with 20 J/cm2 of UV irradiation for LC cells fabricated with the P2BO film.

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