A Highly Efficient Catalyst for the Synthesis of Alternating Copolymers with Thieno[3,4-c]pyrrole-4,6-dione Units via Direct Arylation Polymerization

2014 ◽  
Vol 47 (2) ◽  
pp. 626-631 ◽  
Author(s):  
Masayuki Wakioka ◽  
Nobuko Ichihara ◽  
Yutaro Kitano ◽  
Fumiyuki Ozawa
Keyword(s):  
Efficient Catalyst ◽  
Direct Arylation ◽  
Alternating Copolymers ◽  
Highly Efficient ◽  
Direct Arylation Polymerization

scholarly journals Synthesis of Fluorene Based Alternating Copolymers using Direct Arylation Polymerization

2021 ◽  
Vol 33 (2) ◽  
pp. 393-398
Author(s):  
Mohd Sani Sarjadi ◽  
Yap Leong Khen ◽  
Xin Lin Wong ◽  
Zuhair Jamain ◽  
Md Lutfor Rahman
Keyword(s):  
Solar Cell ◽  
Band Gap ◽  
Active Layer ◽  
Optical Band Gap ◽  
Direct Arylation ◽  
Low Band Gap ◽  
Alternating Copolymers ◽  
Vis Spectroscopy ◽  
Ft Ir ◽  
Direct Arylation Polymerization

Many researches have been done to obtain a low band gap and high Polymeric solar cell (PSCs) polymer either by creating new polymer or revising reported polymers from previous studies. In present work, two new copolymers were synthesized through direct arylation polymerization to produce poly(9,9-didodecylfluorene-alt-benzo[c][1,2,5]thiadiazole (P1) and poly(9,9-didodecylfluorene-altthieno[ 3,2-b]thiophene) (P2). The P1 and P2 are donor-accepter copolymers. P1 and P2 were compared to investigate its suitability to be applied in PSCs. The polymers obtained were characterized using FT-IR, NMR and UV-Vis spectroscopy. P1 shows two adsorption bands at λmax1 = 243 nm and λmax2 = 320 nm, whereas P2 also shows two adsorption bands at λmax1 = 243 nm and λmax2 = 427 nm. The optical band gap was calculated, P1 enabled band gap of 3.88 eV while P2 showed band gap of 2.91 eV. This work could be provided an insight to design and synthesize more efficient fluorene-based copolymers as active layer of PSCs in due course.

scholarly journals The Direct Arylation Polymerization (DArP) of Well-Defined Alternating Copolymers Based On 5,6-Dicyano[2,1,3]benzothiadiazole (DCBT)

2018 ◽  
Vol 7 (7) ◽  
pp. 1419-1425 ◽  
Author(s):  
Qinqin Shi ◽  
Wesley Tatum ◽  
Junxiang Zhang ◽  
Colleen Scott ◽  
Christine K. Luscombe ◽  
...  
Keyword(s):  
Direct Arylation ◽  
Alternating Copolymers ◽  
Direct Arylation Polymerization

Sulfidation of MoO3/γ-Al2O3 towards a highly efficient catalyst for CH4 reforming with H2S

2021 ◽  
Author(s):  
Hao Wang ◽  
Jingxian Wu ◽  
Zhihuang Xiao ◽  
Zhejie Ma ◽  
Ping Li ◽  
...  
Keyword(s):  
Structural Evolution ◽  
Efficient Catalyst ◽  
Highly Efficient ◽  
Ch4 Reforming

The structural evolution of MoO3/γ-Al2O3 during sulfidation and a subsequent CH4/H2S reforming reaction is revealed, and the structure–performance relationships are established.

A Central Role of Nitrogen Atoms in a Highly Efficient Catalyst for Cathodic Hydrogen Evolution

ChemSusChem ◽  
2021 ◽  
Author(s):  
Meng-Jie Zhao ◽  
Sheng-Ying Su ◽  
Ning Deng ◽  
Jun-Qing Shi ◽  
Fang Li ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Efficient Catalyst ◽  
Highly Efficient ◽  
Cathodic Hydrogen Evolution

ChemInform Abstract: FeCl3: Highly Efficient Catalyst for Synthesis of α-Amino Nitriles.

ChemInform ◽  
2010 ◽  
Vol 41 (30) ◽  
pp. no-no
Author(s):  
Majid M. Heravi ◽  
Mojgan Ebrahimzadeh ◽  
Hossein A. Oskooie ◽  
Bita Baghernejad
Keyword(s):  
Efficient Catalyst ◽  
Highly Efficient
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