Comment on “Synthesis and properties of high dielectric constant copolymer of a copper phthalocyanine oligomer grafted to amino-capped polyimide” by L. Chen, Y. Ding, T. Yang, C. Wan and H. Hou,J. Mater. Chem. C, 2017,5, 8371

2019 ◽  
Vol 7 (16) ◽  
pp. 4887-4891 ◽  
Author(s):  
Gellert Mezei
Keyword(s):  
Dielectric Constant ◽  
High Dielectric Constant ◽  
Copper Phthalocyanine ◽  
Pyromellitic Dianhydride ◽  
High Dielectric

Copper phthalocyanine prepared from pyromellitic dianhydride by Chenet al.and others is not fused-tetrameric, as claimed, but simple monomeric.

Reply to the ‘Comment on “Synthesis and properties of a high dielectric constant copolymer of a copper phthalocyanine oligomer grafted to amino-capped polyimide”’ by G. Mezei, Journal of Materials Chemistry C, 2019, 7, DOI: 10.1039/C8TC04076A

2019 ◽  
Vol 7 (16) ◽  
pp. 4892-4894
Author(s):  
Linlin Chen ◽  
Yichun Ding ◽  
Haoqing Hou
Keyword(s):  
Dielectric Constant ◽  
Chemical Structure ◽  
High Dielectric Constant ◽  
Copper Phthalocyanine ◽  
Materials Chemistry ◽  
High Dielectric

We reply to the comment raised by Gellert Mezei on our paper regarding the exact chemical structure of the synthesized copper phthalocyanine oligomer (o-CuPc).

Synthesis and properties of a high dielectric constant copolymer of a copper phthalocyanine oligomer grafted to amino-capped polyimide

2017 ◽  
Vol 5 (33) ◽  
pp. 8371-8375 ◽  
Author(s):  
Linlin Chen ◽  
Yichun Ding ◽  
Ting Yang ◽  
Changfeng Wan ◽  
Haoqing Hou
Keyword(s):  
Dielectric Constant ◽  
Thermal Treatment ◽  
Polymer Film ◽  
High Dielectric Constant ◽  
Copper Phthalocyanine ◽  
Organic Polymer ◽  
Polyamic Acid ◽  
High Dielectric

A novel high dielectric constant all-organic polymer film of a copper phthalocyanine oligomer grafted to polyimide (CuPc–PI) was successfully synthesized via a polycondensation between a copper phthalocyanine anhydride oligomer and amino-capped polyamic acid, followed by thermal treatment.

High Dielectric Constant Composite of P(VDF−TrFE) with Grafted Copper Phthalocyanine Oligomer

2004 ◽  
Vol 37 (6) ◽  
pp. 2294-2298 ◽  
Author(s):  
Jing-Wen Wang ◽  
Qun-Dong Shen ◽  
Chang-Zheng Yang ◽  
Qi-Ming Zhang
Keyword(s):  
Dielectric Constant ◽  
High Dielectric Constant ◽  
Copper Phthalocyanine ◽  
High Dielectric

High dielectric constant response of modified copper phthalocyanine

2014 ◽  
Vol 199 ◽  
pp. 324-329 ◽  
Author(s):  
Khalil J. Hamam ◽  
Mohammad M. Al-Amar ◽  
Gellert Mezei ◽  
Ramakrishna Guda ◽  
Clement Burns
Keyword(s):  
Dielectric Constant ◽  
High Dielectric Constant ◽  
Copper Phthalocyanine ◽  
High Dielectric

Enhanced Dielectric Response in Polyurethane Based All-Organic Nanocomposite

2011 ◽  
Vol 326 ◽  
pp. 73-80 ◽  
Author(s):  
Jing Wen Wang ◽  
Tao Chen ◽  
Nan Wei ◽  
Cong Cong Wu ◽  
Shu Qin Li
Keyword(s):  
Dielectric Constant ◽  
Dielectric Response ◽  
Exchange Coupling ◽  
High Dielectric Constant ◽  
Copper Phthalocyanine ◽  
Coupling Effect ◽  
Nano Composite ◽  
Polarization Mechanism ◽  
High Dielectric ◽  
Average Size

A high dielectric constant nano-composite was fabricated using polyurethane (PU) as matrix and poly (p-chloromethyl styrene) (PCMS) grafted with copper phthalocyanine oligomer (CuPc, a planar multiring semiconductor with dielectric constant>105) (name the grafting product as PCMS-g-CuPc) as filler. According to the TEM-observed morphologies, PCMS-g-CuPc balls (~80 nm) distribute uniformly in PU matrix, while in PCMS-g-CuPc balls the PCMS acts as “matrix” which contains dispersed CuPc particles with a average size of ca. 25nm [1/20 of that of CuPc in simple blend of PU and CuPc (PU/CuPc)]. At 100Hz, the dielectric constant of the nanocomposite reaches 345, almost 7 times higher than that of PU/CuPc. The enhanced dielectric response in the nano-composite can be explained by the remarkably strengthened interface exchange coupling effect as well as the Maxwell-Wagner-Sillars polarization mechanism due to the significantly reduced CuPc particle size in the nano-composite.

Enhanced performance of supercapacitors by constructing a “mini parallel-plate capacitor” in an electrode with high dielectric constant materials

2020 ◽  
Vol 8 (32) ◽  
pp. 16661-16668
Author(s):  
Huayao Tu ◽  
Shouzhi Wang ◽  
Hehe Jiang ◽  
Zhenyan Liang ◽  
Dong Shi ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Carbon Fiber ◽  
Parallel Plate ◽  
Sandwich Structure ◽  
High Dielectric Constant ◽  
Parallel Plate Capacitor ◽  
Plate Capacitor ◽  
Fiber Metal ◽  
High Dielectric ◽  
Mini Plate

The carbon fiber/metal oxide/metal oxynitride layer sandwich structure is constructed in the electrode to form a mini-plate capacitor. High dielectric constant metal oxides act as dielectric to increase their capacitance.

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