Synthesis and characterization of 4-dodecyloxyphenyl and (4′-dodecyloxy-4-biphenyl)methylene-substituted bispyrrolylvinylthiophene-based polysquaraines having good solubility and very low bandgap for light absorption

2012 ◽  
pp. n/a-n/a ◽  
Author(s):  
Erfu Huo ◽  
Daobin Yang ◽  
Zhanyuan Zhang ◽  
Zhiyun Lu ◽  
Huiqin Sun ◽  
...  
Keyword(s):  
Light Absorption ◽  
Synthesis And Characterization ◽  
Low Bandgap ◽  
Good Solubility

Synthesis and Characterization of Poly(Aryl Ether Quinoxaline)s with Controlled Molecular Weight

2011 ◽  
Vol 391-392 ◽  
pp. 826-829
Author(s):  
Song Ya Zhang ◽  
Zhong Xiao Li ◽  
Jia Ling Pu
Keyword(s):  
Molecular Weight ◽  
Glass Transition ◽  
Strong Acid ◽  
Decomposition Temperature ◽  
Molar Ratio ◽  
Synthesis And Characterization ◽  
Aryl Ether ◽  
Good Solubility ◽  
Step Procedure

Novel poly(aryl ether quinoxaline)s (PEQs) were prepared via a two-step procedure. First, poly (ether benzil) (PEB) was synthesized by the polycondensation of 4,4’-difluorobenzil and 4,4’-isopropylidenediphenol.Then, PEB was reacted with 1,2-diaminobenzene and 4,4'-oxydibenzene-1,2-diamine to give the PEQs. The molecular weight of the PEQs could be adjusted easily by varying the molar ratio of 1,2-diaminobenzene to 4,4'-oxydibenzene-1,2-diamine. The PEQs exhibited good solubility in common organic solvents such as NMP, DMAc, DMF, cyclohexanone and chloroform. In addition, the PEQs also had high glass transition (Tg) temperatures and good thermal properties, with an initial thermal decomposition temperature above 475 oC and glass transition temperatures above 210 oC. They also exhibited excellent resistance to strong acid and alkali.

Synthesis and characterization of hyperbranched poly (sulfone-amine) modified β-cyclodextrin

e-Polymers ◽  
2006 ◽  
Vol 6 (1) ◽  
Author(s):  
Liang Chen ◽  
Peng He ◽  
Zhifeng Jia ◽  
Xinyuan Zhu ◽  
Deyue Yan
Keyword(s):  
Drug Delivery ◽  
Low Cost ◽  
Food Additives ◽  
Synthesis And Characterization ◽  
Good Solubility ◽  
Low Viscosity ◽  
Hyperbranched Poly ◽  
Potential Applications ◽  
Inclusion Ability

AbstractAn economical strategy to prepare hyperbranched poly(sulfone-amine) modified β-cyclodextrins (HPSA-m-CDs) from natural β-cyclodextrin (β-CD) and other commercially available materials has been reported. The final product has many good properties of hyperbranched poly(sulfone-amine)s (good solubility, low viscosity etc.), while its inclusion ability can also be well kept. It is a feasible approach to prepare functionalized modified cyclodextrin at very low cost, and may have potential applications in the fields of catalysis, drug delivery, food additives, etc.

Synthesis and characterization of novel fluorinated polybenzoxazoles derived from 2,5-difluoroterephthalic acid

e-Polymers ◽  
2009 ◽  
Vol 9 (1) ◽  
Author(s):  
Xiao-Song Huang ◽  
Feng-Ling Qing
Keyword(s):  
Thermal Stability ◽  
Organic Solvents ◽  
Terephthalic Acid ◽  
Polyphosphoric Acid ◽  
Synthesis And Characterization ◽  
One Pot ◽  
Good Solubility ◽  
The One ◽  
Thermal Stability Of

AbstractA new serious of fluorinated polybenzoxazoles (PBOs) were prepared from 2,2-bis(3-amino-4-hydroxyphenyl) hexafluoropropane together with 2,5- difluoroterephthalic acid (DFTA) and terephthalic acid by the one-pot polycondensation in polyphosphoric acid. The resulting PBOs showed good solubility in many common organic solvents and the thermal stability of PBOs was improved by the introduction of DFTA monomer.

Synthesis and Characterization of New Selenophene-Based Donor–Acceptor Low-Bandgap Polymers for Organic Photovoltaic Cells

2012 ◽  
Vol 45 (3) ◽  
pp. 1303-1312 ◽  
Author(s):  
Woo-Hyung Lee ◽  
Seon Kyoung Son ◽  
Kyoungkon Kim ◽  
Sang Kyu Lee ◽  
Won Suk Shin ◽  
...  
Keyword(s):  
Photovoltaic Cells ◽  
Organic Photovoltaic ◽  
Synthesis And Characterization ◽  
Organic Photovoltaic Cells ◽  
Low Bandgap ◽  
Donor Acceptor

Synthesis and characterization of dimethyl-benzimidazole based low bandgap copolymers for OPVs

2012 ◽  
Vol 162 (11-12) ◽  
pp. 988-994 ◽  
Author(s):  
Suhee Song ◽  
Junkuk Kim ◽  
Joo Young Shim ◽  
Geunjin Kim ◽  
Byoung Hoon Lee ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Low Bandgap
Sign in / Sign up

Export Citation Format

Share Document