Pendant adamantyl poly(ether imide)s: synthesis and a preliminary study of properties

Eastmond, G. C.; Gibas, Mirosław; Paprotny, J.

doi:10.1016/s0014-3057(99)00092-0

Cited by 77 publications

(47 citation statements)

References 23 publications

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“…To overcome such a dilemma without sacrificing high thermal stability, the introduction of bulky and packing-disruptive groups (for example, triphenylamine (TPA) derivatives) into the polymer backbone is a feasible approach. [15][16][17][18][19][20][21][22] Since 2002, we have developed processes for the synthesis of soluble aromatic polyimides and polyamides containing TPA units. Because of the incorporation of the bulky, propeller-shaped TPA structure along the polymer backbone, all of the polymers were amorphous with good solubilities, good film-forming capabilities and high thermal stabilities.…”

Section: Introductionmentioning

confidence: 99%

Solution-processable triarylamine-based high-performance polymers for resistive switching memory devices

Yen

Liou

2015

Polym J

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This review summarizes the most widely used mechanisms in high-performance polymeric resistive memory devices, such as charge transfer, space charge trapping and filament conduction. In addition, recent studies of functional high-performance polymers for memory device applications are reviewed, compared and differentiated based on the mechanisms and structural design methods used. By carefully designing the polymeric structure based on these systematically investigated switching mechanisms, almost all types of current memory characteristics can be reproduced, and these memory properties show extremely high endurance during long-term operation, which makes polyimides very suitable materials for memory applications. INTRODUCTION High-performance polymersToday, life without polymers is unimaginable. Polymers have become the major synthetic materials of the 21st century. High-performance polymers (HPPs) are particularly desirable. The synthesis and development of HPPs over the past 30 years have drawn the attention of many polymer scientists and investigators. These polymers generally possess excellent physical deformation resistance and chemical deterioration resistance at high temperatures over long periods of time. The quest for HPPs began in the late 1950s to meet the demands of the military, aerospace, machine-building and electronics industries, among many other industrial applications.Hill and Walker 1 first noted that the incorporation of aromatic segments into a polymer generally results in a notable increase in its thermal stability. For this reason, much of the research work has been directed toward aromatic compositions. Hence, HPPs usually tend to contain large numbers of aromatic units in their structures. Several of these aromatic HPPs have been used for commercial applications, such as aromatic polyamides, polyimides, polyesters, polysulfones, polytriphenylamine and heterocyclic polymers (Scheme 1). Aromatic polyamides (aramids) and polyimides, such as DuPont's Kevlar fiber and Kapton film, respectively, have been well known for a long time and constantly attract more interest than other HPPs for their useful properties, such as excellent thermal and oxidative stabilities, high mechanical strengths, low flammabilities and good chemical and radiation resistances. [2][3][4][5][6][7][8][9][10][11][12][13] However, the rigidity of the backbone and strong hydrogen bonding of these HPPs result in high melting or glass-transition

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Section: Introductionmentioning

confidence: 99%

Solution-processable triarylamine-based high-performance polymers for resistive switching memory devices

Yen

Liou

2015

Polym J

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“…To overcome these limitations, polymer‐structure modification becomes necessary. One of the common approaches for increasing the solubility and processability of polyamides and polyimides without sacrificing their high thermal stability is the introduction of bulky, packing‐disruptive groups and/or kink structures into the polymers 30–40. Recently, we reported the synthesis of soluble aromatic polyamides and polyimides bearing TPA units in the main chain based on N,N ′‐bis(4‐aminophenyl)‐ N,N ′‐diphenyl‐1,4‐phenylenediamine,41, 42 N,N ‐bis(4‐aminophenyl)‐ N ′, N ′‐diphenyl‐1,4‐phenylenediamine 43, 44.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and evaluation of photoluminescent and electrochemical properties of new aromatic polyamides and polyimides with a kink 1,2‐phenylenediamine moiety

Liou

Yang

2006

J. Polym. Sci. A Polym. Chem.

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A series of novel triphenylamine‐containing aromatic polyamides and polyimides having a crank and twisted noncoplanar structures were synthesized in inherent viscosities of 0.14–0.64 dL/g and 0.11–0.67 dL/g, respectively. These polymers had useful levels of thermal stability associated with relatively high glass‐transition temperatures (174–311 °C). They exhibited strong UV–Vis absorption bands at around 300 nm in NMP solutions. The PL spectra of these polymers in NMP solutions (1 × 10−5 M) showed maximum peaks around 396–479 nm. The hole‐transporting and electrochromic properties were examined by electrochemical and spectroelectrochemical methods. Cyclic voltammetry (CV) of the polymer films cast onto an indium‐tin oxide (ITO)‐coated glass substrate exhibited two reversible oxidation redox couples at potentials of 0.70–1.01 V and 1.10–1.46 V, respectively, vs. Ag/AgCl in acetonitrile solution. The polymer films revealed electrochromic characteristics, with a color change from neutral pale yellowish to green and then to a blue oxidized form at applied potentials ranging from 0.00 to 1.75 V. © 2006 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 44: 2587–2603, 2006

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“…The second one is based on the reversible Lewis acid complexation or polymerization in the cyclodextrin cavity [20] . And the common approach as the third method for increasing the solubility and processability of aromatic polymers without sacrificing high thermal stability is the introduction of bulky, packing-disruptive groups into the polymer backbone [21][22][23][24] . As considered the three methods, we introduce the TPA groups into the polymer backbone to modify the solubility.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and electrochromic properties of novel poly(urethane–azomethine)s containing triphenylamine units

Hao

Wang

Sun

et al. 2015

Journal of Electroanalytical Chemistry

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Pendant adamantyl poly(ether imide)s: synthesis and a preliminary study of properties

Cited by 77 publications

References 23 publications

Solution-processable triarylamine-based high-performance polymers for resistive switching memory devices

Solution-processable triarylamine-based high-performance polymers for resistive switching memory devices

Synthesis and evaluation of photoluminescent and electrochemical properties of new aromatic polyamides and polyimides with a kink 1,2‐phenylenediamine moiety

Synthesis and electrochromic properties of novel poly(urethane–azomethine)s containing triphenylamine units

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