Synthesis and properties of fluorinated polyimides, 2

Madhra, Mukesh Kumar; Salunke, Arun Kashinath; Banerjee, Susanta; Prabha, Shashi

doi:10.1002/1521-3935(200206)203:9<1238::aid-macp1238>3.0.co;2-r

Cited by 74 publications

(68 citation statements)

References 14 publications

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“…[19] Thin films of these polymers showed very good optical transparency and showed comparable or lower dielectric constants (e, 2.81-3.12) than that of the poly(ether imide)s derived from symmetrical semi-fluorinated bisamino monomers (see Table 5). [14,15] …”

Section: Polymer Propertiesmentioning

confidence: 99%

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Novel Semi‐Fluorinated Poly(ether imide)s Derived From 4‐(p‐Aminophenoxy)‐3‐trifluoromethyl‐4′‐aminobiphenyl

Kute

Banerjee

2003

Macro Chemistry & Physics

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An unsymmetrical diamine monomer 4‐(p‐aminophenoxy)‐3‐trifluoromethyl‐4′‐aminobiphenyl has been synthesized successfully. This monomer leads to the synthesis of different novel poly(ether imide)s when reacted with different dianhydrides like pyromellatic dianhydride (PMDA), benzophenone tetracarboxylic acid dianhydride (BTDA), 2,2‐bis(3,4‐dicarboxyphenyl) hexafluoropropane (6FDA), and oxy diphthalic anhydride (ODA). The poly(ether imide) prepared from this monomer on reaction with 6FDA is soluble in several organic solvents such as N‐methylpyrolidinone (NMP), dimethylformamide (DMF), N,N‐dimethylacetamide (DMAc), tetrahydrofuran (THF), and CHCl3. The poly(ether imide)s prepared from BTDA and ODA are soluble in NMP, DMF, and DMAc but not in THF or CHCl3, whereas the polymer prepared from PMDA is soluble only in NMP. The water uptake value for these poly(ether imide) films is very low (0.2–0.5%), and exhibited low dielectric constants (2.81 at 1 MHz). The polymers exhibited high thermal stability up to 532 °C in air for 5% weight loss, and high glass transition temperatures up to 288 °C. The polymer exhibited high tensile strength up to 135 MPa, modulus 3.2 GPa, and elongation at break up to 25%, depending on the exact polymer structure.The structure of the poly(ether imide) synthesised from 4‐(p‐aminophenoxy)‐3‐trifluoromethyl‐4′‐aminobiphenyl and 2,2‐bis(3,4‐dicarboxyphenyl) hexafluoropropane. This polymer was soluble in many organic solvents.magnified imageThe structure of the poly(ether imide) synthesised from 4‐(p‐aminophenoxy)‐3‐trifluoromethyl‐4′‐aminobiphenyl and 2,2‐bis(3,4‐dicarboxyphenyl) hexafluoropropane. This polymer was soluble in many organic solvents.

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Section: Polymer Propertiesmentioning

confidence: 99%

“…We have already reported a number of poly-(arylene ether)s, [9][10][11][12] poly(arylene)s, [13] and poly(ether imide)s [14,15] containing pendent trifluoromethyl groups. Recently, Chung and Kim [16] have reported several soluble poly(ether imide) structures derived from an unsymmetrical, 2-trifluoromethyl-4,4 0 -diaminodiphenyl ether.…”

Section: Introductionmentioning

confidence: 99%

Novel Semi‐Fluorinated Poly(ether imide)s Derived From 4‐(p‐Aminophenoxy)‐3‐trifluoromethyl‐4′‐aminobiphenyl

Kute

Banerjee

2003

Macro Chemistry & Physics

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“…The dielectric constant values of these films are comparable to Kapton H (3.3 at 10 MHz), and those of many semifluorinated polyimides (6FDA-MPD: 3.0; 6FDA-7FMDA: 2.9; TFDA-p-APB: 2.89). 20,22 It indicates that the introduction of polar triazole ring has not increased the dielectric constant of PIs obviously.…”

Section: -402mentioning

confidence: 99%

New Polytriazoleimides with High Thermal and Chemical Stabilities

Yanpeng¹,

Wan

Li³

et al. 2012

Bulletin of the Korean Chemical Society

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“…To achieve maximum possible running speed in a limited dimensions, insulating materials with dielectric constant as small as possible are preferred. Polyimides with increasingly low dielectric constant and humidity absorption rate have being become the focus of several recent investigations [5][6][7][8] . As reported preparation of the matrix of fluorinated polyamide (FPI) and the incorporation of inorganic micro-or nano-fillers such as silica nanoparticles are a feasible way of improving these properties.…”

Section: Introductionmentioning

confidence: 99%