Synthesis and characterization of polyimides with low dielectric constants from aromatic dianhydrides and aromatic diamine containing phenylene ether unit

Polymer ◽  
2005 ◽  
Vol 46 (16) ◽  
pp. 5903-5908 ◽  
Author(s):  
Yasufumi Watanabe ◽  
Yuji Shibasaki ◽  
Shinji Ando ◽  
Mitsuru Ueda
Keyword(s):  
Dielectric Constants ◽  
Synthesis And Characterization ◽  
Aromatic Diamine ◽  
Low Dielectric

Synthesis and characterization of novel adamantane-based copoly(aryl ether ketone)s with low dielectric constants

2013 ◽  
Vol 63 (2) ◽  
pp. 333-337 ◽  
Author(s):  
Zhi Geng ◽  
Yaning Lu ◽  
Shuling Zhang ◽  
Xu Jiang ◽  
Pengfei Huo ◽  
...  
Keyword(s):  
Dielectric Constants ◽  
Synthesis And Characterization ◽  
Aryl Ether ◽  
Low Dielectric ◽  
Aryl Ether Ketone ◽  
Ether Ketone

Synthesis and characterization of novel fluorinated poly(ether imide)s containing pyridine and/or phenylphosphine oxide moieties

2018 ◽  
Vol 31 (5) ◽  
pp. 485-496 ◽  
Author(s):  
Xiao-Lan Zhang ◽  
Xiao-Ling Liu ◽  
Qiu-Ying Wang ◽  
Zhen-Zhong Huang ◽  
Shou-Ri Sheng
Keyword(s):  
Catalytic Reduction ◽  
Dielectric Constants ◽  
Aromatic Diamine ◽  
Cutoff Wavelength ◽  
Good Thermal Stability ◽  
Low Dielectric ◽  
Flexible Polymer ◽  
Thermal Imidization ◽  
Phenylphosphine Oxide

4-(4-Trifluoromethylphenyl)-2,6-bis[4-(4-amino-2-trifluoromethylphenoxy)phenyl]pyridine (9FPBAPP), as a new aromatic diamine, was prepared by a modified Chichibabin reaction of 4-(4-nitro-2-trifluoromethylphenoxy)acetophenone with 4-triflouromethylbenzaldehyde, followed by a catalytic reduction. A series of fluorinated poly(ether imide)s containing pyridine and/or phenylphosphine oxide moieties were prepared from bis(3-aminophenyl)phenylphosphine oxide (BAPPO), 2,2′-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA), and 9FPBAPP via a conventional two-step thermal imidization procedure with various mole ratios of BAPPO and 9FPBAPP. All the polymers were amorphous and soluble in common organic solvents such as N, N-dimethylacetamide and N-methyl-2-pyrrolidone and had Tg’s of 277–285°C, 5% weight loss temperature of 521–550°C in nitrogen. Furthermore, high char yields and good limited oxygen index values indicated that these polymers exhibited good thermal stability and flame-retardant property. Tough and flexible polymer films also had good mechanical properties with tensile strengths of 75–99 MPa, tensile moduli of 1.1–1.6 GPa, and elongations at break of 12%–24% and low dielectric constants of 2.81–3.53 (1 MHz), as well as high optical transparency with the ultraviolet cutoff wavelength in the range of 350–384 nm.

Synthesis and characterization of poly(2,6-dialkoxy-1,5-naphthylene)s with low dielectric constants

2018 ◽  
Vol 50 (3) ◽  
pp. 277-280 ◽  
Author(s):  
Li-Che Hsu ◽  
Min Chi Yang ◽  
Tomoya Higashihara ◽  
Wen-Chang Chen ◽  
Mitsuru Ueda
Keyword(s):  
Dielectric Constants ◽  
Synthesis And Characterization ◽  
Low Dielectric

Synthesis and characterization of new cardo poly(ether amide)s containing 9(10H)-anthrone units

2020 ◽  
Vol 32 (9) ◽  
pp. 1001-1009
Author(s):  
Yi-Sheng Luo ◽  
Qiu-Ying Wang ◽  
Xue-Chun Mao ◽  
Shou-Ri Sheng
Keyword(s):  
Room Temperature ◽  
Dicarboxylic Acids ◽  
Synthesis And Characterization ◽  
Aromatic Diamine ◽  
Polar Solvents ◽  
Glass Transition Temperatures ◽  
Flexible Films ◽  
Step Procedure ◽  
Aromatic Dicarboxylic Acids

A new aromatic diamine, 10,10-bis[4-(4-aminophenoxy)phenyl]-9(10 H)-anthrone (BAPA) has been synthesized from anthrone via three-step procedure. Direct phosphorylation polycondensation of BAPA with various aromatic dicarboxylic acids produced a series of cardo poly(ether amide)s with inherent viscosities of 0.97–1.29 dL g−1. All the polymers were readily soluble in polar solvents such as N-methyl-2-pyrrolidone, N, N-dimethylacetamide (DMAc), and pyridine at room temperature, and afforded transparent, strong, and flexible films upon casting from DMAc solvent. The resulting poly(ether amide)s had glass transition temperatures of 254–316°C, 10% weight loss temperatures of 495–524°C, and char yields of 55–70% at 800°C in nitrogen. These polymers were amorphous and their films exhibited tensile strengths of 81.6–104.7 MPa, tensile moduli of 1.8–2.4 GPa, and elongations at break of 8–15%.

Fabrication and Characterization of Cu-Plated Fine Pitch Patterns on Flexible Polyimide

2013 ◽  
Vol 284-287 ◽  
pp. 118-122 ◽  
Author(s):  
Ying Chih Wu ◽  
Yu Jung Huang ◽  
Ming Kun Chen ◽  
Yi Lung Lin ◽  
Ling Sheng Jang
Keyword(s):  
Film Surface ◽  
Dielectric Constants ◽  
Process Window ◽  
Good Thermal Stability ◽  
Low Dielectric ◽  
Microelectronic Devices ◽  
Fine Pitch ◽  
Cu Film ◽  
High Flexibility

The thin flexible Polyimides (PI) films have desirable properties for use in the electrical and electronics industry because their good thermal stability, high flexibility, low dielectric constants, excellent mechanical strength, low loss tangent, low relative permittivity and electrical insulating properties. In order to determine the process window of the surface metallization of PI, the fine traces with 50 micron pitch (25micron line /space) built on a flexible 50 micron thick PI film using wet fabrication process are reported in this paper. The thick copper (Cu) film was obtained from the Cu plating process using evaporated thin film of Cu as the adhesion layer. The fabricated fanout fine patterns are further investigated using scanning electron microscope (SEM), energy-dispersive spectrometry (EDS) and X-ray spectrometry technologies. The experiment is conducted to study the effect of the process parameters on the Cu film surface properties. The results obtained in this work can be applied to the fabrication of flexible microelectronic devices.

High optical transparency, low dielectric constant, and light color of organosoluble polyamides based on 10,10-bis[4-(4- amino-3-trifluoromethylphenoxy)phenyl]- 9(10H)-anthrone

2019 ◽  
Vol 32 (4) ◽  
pp. 444-454 ◽  
Author(s):  
Juan Zhong ◽  
Zhen-Zhong Huang ◽  
Wei-Hong Wei ◽  
Bin Huang ◽  
Cheng Song
Keyword(s):  
Molecular Weight ◽  
Average Molecular Weight ◽  
Dielectric Constants ◽  
Aromatic Diamine ◽  
Cutoff Wavelength ◽  
Visible Absorption ◽  
Low Dielectric ◽  
Dimethyl Acetamide ◽  
Step Procedure ◽  
Light Color

A new aromatic diamine, 10,10-bis[4-(4-amino-3-trifluoromethylphenoxy)phenyl]-9( 10H)-anthrone (BATFPA), has been synthesized from anthrone via three-step procedure. Low-temperature polycondensation of BATFPA with various aromatic dicarboxylic acid chlorides produced novel fluorinated polyamides with moderate to high inherent viscosities of 0.75–1.03 dL/g while the weight-average molecular weight and number-average molecular weight were in the range of 66,000–74,000 and 37,000–41,000, respectively. Nearly, all the polymers were readily soluble in polar solvents, such as N,N-dimethyl acetamide (DMAc), N-methyl-2-pyrrolidinone, pyridine, and tetrahydrofuran, and afforded transparent, light-colored, and flexible films upon casting from DMAc solvent. These polymers had glass transition temperatures of 249–309°C, 10% weight loss temperatures of 486–517°C, and char yields of 53–61% at 800°C under nitrogen. All polymers were amorphous and their films exhibited tensile strengths of 64–86 MPa, tensile moduli of 1.8–2.2 GPa, and elongation at break of 10–18%. These polymers had dielectric constants ranging from 3.25 to 3.76 (100 Hz), low moisture uptake in the range of 0.72–1.18%, and high transparency with an ultraviolet–visible absorption cutoff wavelength in the 360–378 nm range.

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