Synthesis and optical properties of polyimides

Takasaki, Toshihiko; Kuwana, Yasuhiro; Takahashi, Tōru; Hayashida, Shigeru

doi:10.1002/1099-0518(200012)38:1+<4832::aid-pola210>3.0.co;2-m

Cited by 29 publications

(8 citation statements)

References 6 publications

(5 reference statements)

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“…This class of polymers is known for their high glass transition temperature, high strength, and chemical resistance. The properties of PIs can be significantly altered by a small change in the structure of the dianhydride and diamine components . For the use of PIs in microelectronic devices, the low dielectric constant is one of the important prerequisite.…”

Section: Introductionmentioning

confidence: 99%

Low dielectric constant polyimide nanomats by electrospinning

Chen

Bera

Banerjee

et al. 2011

Polymers for Advanced Techs

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The proper combination of material (i.e. fluorinated polyimides) and processing technique (electrospinning) could lead to the formation of polyimides with low dielectric constant, high thermo‐oxidative stability and glass transition temperature, and high hydrophobicity. The polyimides in this work were based on 4, 4‐bis [3′‐trifluoromethyl‐4′ (4′‐amino benzoxy) benzyl] biphenyl (Q) and various fluorinated and non‐fluorinated dianhydrides namely benzene‐1,2,4,5‐tetracarboxylic dianhydride, 3,3′,4,4′‐biphenyltetracarboxylic dianhydride, benzophenone‐3,3′,4,4′‐tetracarboxylic dianhydride, and 4,4′‐(hexafluoroisopropylidene)diphthalic anhydride (6FDA). Processing of the polyimides was carried out in poly(amic acid) stage by two different methods—electrospinning and solution casting for comparison purposes. The processing of polyimides by electrospinning led to enhancement in mechanical properties (dianhydride‐structure dependent) and hydrophobicity without sacrificing thermo‐oxidative stability and glass transition temperatures significantly. Also, low dielectric constants (as low as 1.43) could be attained by suitable combination of dianhydride (6FDA) with 4, 4‐bis [3′‐trifluoromethyl‐4′ (4′‐amino benzoxy) benzyl] biphenyl diamine. Copyright © 2011 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

Low dielectric constant polyimide nanomats by electrospinning

Chen

Bera

Banerjee

et al. 2011

Polymers for Advanced Techs

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“…Fortunately, replacing CH bonds with C–F bonds can largely reduce the overtone absorption. Thus, a wide range of fluorinated polymers have been synthesized and tested for this application at these telecommunication wavelengths 4, 8–13…”

Section: Introductionmentioning

confidence: 99%

Fluorinated poly(arylene ether ketone)s bearing pentafluorostyrene moieties prepared by a modified polycondensation

Ding

Liu

et al. 2002

J. Polym. Sci. A Polym. Chem.

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Section: The Relationship Between Molecular Structure and Transparencymentioning

confidence: 99%

Molecular Structure and Properties of Sulfur‐Containing High Refractive Index Polymer Optical Materials

Zhou,

Zhu,

Zhang

et al. 2023

Macromol. Rapid Commun.

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High refractive index polymers (HRIPs) are widely used in lenses, waveguide, antireflective layer and encapsulators, especially the advanced fields of augmented/virtual reality (AR / VR) holographic technology and photoresist for chip manufacturing. In order to meet the needs of different applications, the development of HRIPs focuses not only on the increase in refractive index but also on the balance of other properties. Sulfur‐containing high refractive index polymers have received extensive attention from researchers due to their excellent properties. In recent years, not only ultra‐high refractive index sulfur‐containing polymers have been continuously developed, but also low dispersion, low birefringence, high transparency, good mechanical properties and machinability have been studied. The design of HRIPs is generally based on formulas and existing experience. In fact, molecular structure and properties are closely related. Mastering the structure‐property relationship helps researchers to develop high refractive index polymer materials with balanced properties. This review briefly introduces the preparation methods of sulfur‐containing high refractive index polymers, and summarizes the structure‐property relationship between the sulfur‐containing molecular structure and optical properties, mechanical properties, thermal properties, etc. Finally, the important role of synergistic effect in the synthesis of HRIPs and the prospect of future research on HRIPs are proposed.This article is protected by copyright. All rights reserved

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Synthesis and optical properties of polyimides

Cited by 29 publications

References 6 publications

Low dielectric constant polyimide nanomats by electrospinning

Low dielectric constant polyimide nanomats by electrospinning

Fluorinated poly(arylene ether ketone)s bearing pentafluorostyrene moieties prepared by a modified polycondensation

Molecular Structure and Properties of Sulfur‐Containing High Refractive Index Polymer Optical Materials

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