Pyrene-functionalized tetraphenylethylene polybenzoxazine for dispersing single-walled carbon nanotubes and energy storage

被引：162

作者：

Samy, Maha Mohamed ^{[1
]}

Mohamed, Mohamed Gamal ^{[1
,2
]}

Kuo, Shiao-Wei ^{[1
,3
]}

机构：

[1] Natl Sun Yat Sen Univ, Ctr Crystal Res, Dept Mat & Optoelect Sci, Kaohsiung 80424, Taiwan

[2] Assiut Univ, Fac Sci, Chem Dept, Assiut 71516, Egypt

[3] Kaohsiung Med Univ, Dept Med & Appl Chem, Kaohsiung 807, Taiwan

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2020年 / 199卷

关键词：

Polybenzoxazine; Ring-opening polymerization; Carbon nanotube; Nanocomposites; Supercapacitor; RING-OPENING POLYMERIZATION; NANOTUBE/POLYBENZOXAZINE NANOCOMPOSITES; THERMAL-PROPERTIES; COMPOSITES; BENZOXAZINES; TEMPERATURE; COMPONENT; CATALYST; CHLORIDE; RESINS;

D O I：

10.1016/j.compscitech.2020.108360

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

We synthesized the new pyrene-functionalized tetraphenylethylene benzoxazine monomer (TPEP-BZ) through 1,1,2,2-tetra(3-formyl-4-hydroxyphenyl)ethylene with 1-aminopyrene through Schiff base reaction, reduction with NaBH4 and then ring-closing with paraformaldehyde in a mixture of 1,4-dioxane and absolute EtOH. DSC, TGA, and FTIR spectroscopy were performed to understand the ring-opening polymerization and its corresponding thermal stability of this new TPEP-BZ monomer and then blending with different weight ratios of single-walled carbon nanotubes (SWCNT) before and after thermal treatments. More interestingly, the TPEP-BZ/ SWCNT nanocomposites display lower curing temperature (262 degrees C), but significantly higher T-d value (475 degrees C) and char yield (74 wt%) compared with typical Pa type benzoxazine. In addition, the poly (TPEP-BZ)/SWCNT nanocomposites also display high specific capacitance (84 F g(-1)) at a current density of 0.5 A g(-1) and excellent cycling stability (98.3% capacitance retention over 2000 cycles).

引用

页数：9

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