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author:

Xu, Wei (Xu, Wei.) [1] | Su, Yumiao (Su, Yumiao.) [2] | Ding, Yulin (Ding, Yulin.) [3] | Li, Chenjie (Li, Chenjie.) [4] | Li, Wenmu (Li, Wenmu.) [5]

Indexed by:

EI Scopus SCIE

Abstract:

A series of poly(benzimidazole sulfone)s (PBSs) and poly(benzimidazole ketone)s (PBKs) containing 5,6-dimethoxy-1,3-dihydro-2H-benzo[d]imidazol-2-one (MBIO) have been synthesized by C-N/C-O coupling with different percentages of three other diphenol monomers under similar conditions. The structure of PBS-MBs and PBK-MBs was confirmed using H-1 NMR and Fourier transform infrared spectroscopies, and X-ray diffraction data revealed that all the polymers are in an amorphous state. Due to the introduction of methoxy, the polymers were more soluble in common aprotic polar solvents. The intrinsic viscosity of the synthesized polymers was measured with an Ubbelohde viscometer, ranging from 0.38 to 1.35 dL g(-1). The MBIO-based polymers have a remarkably good thermal stability with a high glass transition temperature of up to 305.1 ?. Furthermore, the wavelength of maximum fluorescence emission from homopolymers is around 414 nm with emission of blue light in N-methyl-2-pyrrolidone solution (1 mg L-1) and around 530 nm in films. They also showed low dielectric constants (kappa = 2.60-3.10 at 1 MHz) and low water absorption (0.22-0.58%). It was encouraging to discover that these polymers have potential utility for the microelectronics industry, in which good solubility facilitates processing and molding, excellent thermal stability allows devices to be used under harsh conditions, low water absorption prevents device expansion and shrinkage and low dielectric constant is desired to prevent crosstalk between conducting paths. (c) 2023 Society of Industrial Chemistry.

Keyword:

benzimidazolidone dielectric constant high-performance polymer poly(benzimidazole sulfone)s

Community:

  • [ 1 ] [Li, Wenmu]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Peoples R China
  • [ 2 ] [Xu, Wei]Fuzhou Univ, Coll Chem, Fuzhou, Fujian, Peoples R China
  • [ 3 ] [Xu, Wei]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou, Peoples R China
  • [ 4 ] [Su, Yumiao]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou, Peoples R China
  • [ 5 ] [Ding, Yulin]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou, Peoples R China
  • [ 6 ] [Li, Chenjie]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou, Peoples R China
  • [ 7 ] [Li, Wenmu]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou, Peoples R China
  • [ 8 ] [Ding, Yulin]Fujian Sci & Technol Innovat Lab Optoelect Informa, Fuzhou, Fujian, Peoples R China
  • [ 9 ] [Li, Wenmu]Fujian Sci & Technol Innovat Lab Optoelect Informa, Fuzhou, Fujian, Peoples R China

Reprint 's Address:

  • [Li, Wenmu]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Peoples R China;;

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Source :

POLYMER INTERNATIONAL

ISSN: 0959-8103

Year: 2023

Issue: 5

Volume: 72

Page: 532-540

2 . 9

JCR@2023

2 . 9 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

ESI HC Threshold:39

JCR Journal Grade:2

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 1

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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