Facile photochemical synthesis of main-chain-type semifluorinated alternating copolymers catalyzed by conventional amines or halide salts

2021 ◽  
Author(s):  
Yuxue Wang ◽  
Kai Tu ◽  
Jiannan Cheng ◽  
Enjie He ◽  
Jinying Wang ◽  
...  
Keyword(s):  
Main Chain ◽  
Halogen Bond ◽  
Low Cost ◽  
Photochemical Synthesis ◽  
Alternating Copolymers ◽  
Halide Salts ◽  
Chain Type

In this work, we report a much simple and low-cost method to prepare main-chain-type semifluorinated alternating copolymers by the formation of halogen bond (XB) complex between α,ω-diiodoperfluoroalkanes and amines/halide salts....

Main-Chain-Type 8-Quinolinol Polymers:  Synthesis, Optical Properties, and Complex Formation with Metals

2008 ◽  
Vol 41 (5) ◽  
pp. 1654-1662 ◽  
Author(s):  
Takayuki Iijima ◽  
Shin-ichi Kuroda ◽  
Takakazu Yamamoto
Keyword(s):  
Optical Properties ◽  
Complex Formation ◽  
Main Chain ◽  
Chain Type

Conjugated alternating copolymers containing both donor and acceptor moieties in the main chain

2007 ◽  
pp. 1704-1706 ◽  
Author(s):  
Ming Zhang ◽  
Changduk Yang ◽  
Ashok K. Mishra ◽  
Wojciech Pisula ◽  
Gang Zhou ◽  
...  
Keyword(s):  
Main Chain ◽  
Alternating Copolymers ◽  
Donor And Acceptor

Crosslinked main-chain-type polybenzoxazine coatings for corrosion protection of mild steel

2017 ◽  
Vol 14 (4) ◽  
pp. 937-944 ◽  
Author(s):  
Xin Lu ◽  
Yan Liu ◽  
Wenfei Zhang ◽  
Xueying Zhang ◽  
Changlu Zhou ◽  
...  
Keyword(s):  
Mild Steel ◽  
Corrosion Protection ◽  
Main Chain ◽  
Chain Type

Outstanding dielectric and thermal properties of main chain-type poly(benzoxazine-co-imide-co-siloxane)-based cross-linked networks

2019 ◽  
Vol 10 (19) ◽  
pp. 2387-2396 ◽  
Author(s):  
Kan Zhang ◽  
Xinye Yu ◽  
Shiao-Wei Kuo
Keyword(s):  
Dielectric Constant ◽  
Thermal Properties ◽  
High Performance ◽  
Main Chain ◽  
Low Dielectric Constant ◽  
Low Dielectric ◽  
Chain Type ◽  
Dielectric And Thermal Properties

A high performance cross-linked polymer with a very low dielectric constant was achieved via a newly designed main-chain type poly(benzoxazine-co-imide-co-siloxane).

scholarly journals Synthesis of Polyazobenzenes Exhibiting Photoisomerization and Liquid Crystallinity

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 348 ◽  
Author(s):  
Masashi Otaki ◽  
Reiji Kumai ◽  
Hajime Sagayama ◽  
Hiromasa Goto
Keyword(s):  
Conjugated Polymers ◽  
Main Chain ◽  
Cross Coupling ◽  
Industrial Applications ◽  
Optical Absorption Spectroscopy ◽  
X Ray Diffraction ◽  
Liquid Crystallinity ◽  
X Ray ◽  
Cis And Trans ◽  
Chain Type

While only a few studies have investigated the synthesis of main chain-type polyazobenzenes, they continue to draw an increasing amount of attention owing to their industrial applications in holography, dyes, and functional adhesives. In this study, dibromoazobenzene was prepared as a monomer for constructing azo-based π-conjugated polymers. Miyaura–Suzuki cross-coupling polymerization was conducted to develop copolymers containing an azobenzene unit as a photoisomerization block and a pyrimidine-based liquid crystal generator block. The prepared polymers exhibited thermotropic liquid crystallinity and underwent cis and trans photoisomerization upon irradiation with ultraviolet and visible light. Furthermore, the photoisomerization behavior was examined using optical absorption spectroscopy and synchrotron X-ray diffraction spectrometry.

scholarly journals Photomechanic Behavior of Main-chain Type of Polycoumarates

2013 ◽  
Vol 26 (2) ◽  
pp. 271-275
Author(s):  
Kagsuaki Yazaki ◽  
Seiji Tateyama ◽  
Daisake Kaneko ◽  
Tetsuo Kaneko
Keyword(s):  
Main Chain ◽  
Chain Type
Sign in / Sign up

Export Citation Format

Share Document