Dielectric properties and surface morphology of swift heavy ion beam irradiated polycarbonate films

Rathore, Bhupendra Singh; Gaur, M. S.; Singh, Karanveer

doi:10.1007/s10973-012-2545-6

Cited by 12 publications

(3 citation statements)

References 34 publications

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“…Thus, the polymer materials need to have excellent overall properties, such as good optical transparency, good thermal properties, low coefficient of thermal expansion (CTE) and good processability. Some typical transparent polymers, such as polycarbonate, 8,9 poly(ethylene naphthalate) 10 and poly(ether sulfone) 11,12 have high optical transparency but poor thermal stability.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and properties of transparent poly(ester‐amide‐imide)s from tert‐butylhydroquinone bis(trimellitate anhydride) and p‐phthaloyl chloride

Wen

Chen

et al. 2023

Polymer International

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Two series of poly(ester‐amide‐imide)s (PEsAIs) with simultaneously bulky side groups, ester and amide bonds were synthesized by copolymerization of tert‐butylhydroquinone bis(trimellitate anhydride), p‐phthaloyl chloride and other monomers. These PEsAIs had glass transition temperatures (Tgs) in the range of 231–301 °C, coefficients of thermal expansion (CTEs) of 17–59 ppm K−1 and displayed good mechanical properties with tensile modulus of 2.6–4.5 GPa, tensile strengths of 63–143 MPa and elongations at break of 3.0%–11.7%. All films had good transparency with transmittances at 400 nm (T400nm) of 43%–80%. The introduction of p‐phthaloyl chloride successfully improved the properties of the polymer with higher transmittance, higher Tg and lower CTE. In particular, PEsAI‐b‐60 presented the best comprehensive performance with a moderate Tg of 301 °C, low CTE of 17 ppm K−1 and high transmittance (T400nm) of 75%. © 2023 Society of Industrial Chemistry.

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Section: Introductionmentioning

confidence: 99%

Synthesis and properties of transparent poly(ester‐amide‐imide)s from tert‐butylhydroquinone bis(trimellitate anhydride) and p‐phthaloyl chloride

Wen

Chen

et al. 2023

Polymer International

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“…Although some typical highly‐transparent and colorless polymers, such as poly(ethylene terephthalate) (PET), 27 polycarbonate (PC), 28–30 poly(ethylene naphthalate) (PEN), 31,32 poly(ether ether ketone) (PEEK), 33 poly(ether sulfone) (PES) 34 have high optical transparency, but their thermal stability is poor. For example, even PES which has the best heat resistance, has a T g of only 225°C 35…”

Section: Introductionmentioning

confidence: 99%

“…11,[17][18][19][20][21] To prepare high performance thin film transistors, the substrates should withstand a processing temperature above 300 C 2,21 or even above 400 C. 22 Moreover, the processing temperature of photoelectric preparation such as physical vapor deposition (PVD) 23 and plasma enhanced chemical vapor deposition (PECVD) 24 may also exceed 400 C. 25 Therefore, plastic substrates are required to meet the need of not only high transparency, but also good thermal stability. 26 Although some typical highly-transparent and colorless polymers, such as poly(ethylene terephthalate) (PET), 27 polycarbonate (PC), [28][29][30] poly(ethylene naphthalate) (PEN), 31,32 poly(ether ether ketone) (PEEK), 33 poly(ether sulfone) (PES) 34 have high optical transparency, but their thermal stability is poor. For example, even PES which has the best heat resistance, has a T g of only 225 C. 35 Polyimide (PI) is a class of high-performance polymer that contains imide rings in its backbone.…”

Section: Introductionmentioning

confidence: 99%

Synthetic strategies for highly transparent and colorless polyimide film

Liu

Wang

2022

J of Applied Polymer Sci

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Polyimide (PI) is one of the best engineering plastics with excellent thermal, mechanical, dielectric performance and chemical stability. Among various PI products, film is one of the most dominant types. If PI films are to be applied to optical devices and display equipment, it is necessary to improve their optical transparency in the ultraviolet–visible region. However, improving the optical transparency of PI films would affect their thermal performance including thermal and dimensional stability. Therefore, how to balance optical and thermal performance to obtain highly transparent PI films with the best overall performance becomes a focus of current research field. In this review, we categorize transparent PI films into highly transparent PI, transparent PI with high glass transition temperature (Tg) and transparent PI with low coefficient of thermal expansion (CTE) based on their optical and thermal properties. Then, we review research progress in the field of polymer molecular design including synthesis strategies and properties in recent 5 years, to inspire research ideas and elaborate on the possible ways to develop high‐performance, colorless and transparent PI materials.

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