Characterization and thermal degradation kinetics of thermoplastic polyimide based on BAPP

Xu, Shixiao; Xu, Yong; Li, Linshuang; Song, Chaoran

doi:10.1177/0954008317729741

Cited by 11 publications

(12 citation statements)

References 21 publications

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“…DuPont has obtained a commercial thermoplastic PI film, Kapton ® -KJ, by introducing a large number of flexible ether linkages, but its glass transition temperature (T g ) is only 220°C [16]. The films derived from 3,3′,4,4′-benzophenonetetracarboxylic dianhydride (BTDA) and flexible diamines, such as 2,2-bis [4-(4- [18]. It has also been found that BTDA/TPE-R is a new type of high temperature semi-crystalline PI [15].…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of a novel quaternary copolymerized thermoplastic polyimide

Liu¹,

Cao²,

He³

et al. 2019

Express Polym. Lett.

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A series of quaternary copolymerized thermoplastic polyimides (PI) films with good thermal resistance has been synthesized via two-step method from bicomponent isomeric dianhydrides, 2,3′,3,4′-biphenyltetracarboxylic dianhydride (α-BPDA) and 3,3′,4,4′-biphenyltetracarboxylic dianhydride (s-BPDA), and bicomponent flexible diamines, 4,4′-oxydianiline (ODA) and 1,3-bis(4′-aminophenoxy)benzene (TPE-R). By adjusting the molar ratio of dianhydrides to diamines, its effects on the thermal stability, thermoplasticity and solubility of PI films were investigated in detail. The results showed that these quaternary copolymerized PI films were in possession of both thermoplasticity and excellent thermal stability. It is derived from the synergetic effect of isomeric dianhydrides and flexible diamines. It has also been found that there is one critical molar ratio between dianhydrides and diamines, that is, α-BPDA:s-BPDA:ODA:

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Section: Introductionmentioning

confidence: 99%

Preparation and properties of a novel quaternary copolymerized thermoplastic polyimide

Liu¹,

Cao²,

He³

et al. 2019

Express Polym. Lett.

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“…The presence of F-or S-rich structural motifs determines other, usually toxic volatiles. The decomposition process follows several pathways: depolymerization, pyrolytic reformation, successive homolytic and hydrolytic cleavages, hydrogen ablation, progressive molecular rearrangements, and loss of organic functionality through radical scission [140,145,146]. In every pathway, CO2 remains the main degradation product, while the nature of the other volatiles is dictated by the chemical structure of the polymer.…”

Section: Thermal (Oxidative) Degradationmentioning

confidence: 99%

New High-Performance Materials: Bio-Based, Eco-Friendly Polyimides

Rusu¹,

Abadie²

2021

Polyimide for Electronic and Electrical Engineering Applications

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The development of high-performance bio-based polyimides (PIs) seems a difficult task due to the incompatibility between petrochemical-derived, aromatic monomers and renewable, natural resources. Moreover, their production usually implies less eco-friendly experimental conditions, especially in terms of solvents and thermal conditions. In this chapter, we touch some of the most significant research endeavors that were devoted in the last decade to engineering naturally derived PI building blocks based on nontoxic, bio-renewable feedstocks. In most cases, the structural motifs of natural products are modified toward amine functionalities that are then used in classical or nonconventional methods for PI synthesis. We follow their evolution as viable alternatives to traditional starting compounds and prove they are able to generate eco-friendly PI materials that retain a combination of high-performance characteristics, or even bring some novel, enhanced features to the field. At the same time, serious progress has been made in the field of nonconventional synthetic and processing options for the development of PI-based materials. Greener experimental conditions such as ionic liquids, supercritical fluids, microwaves, and geothermal techniques represent feasible routes and reduce the negative environmental footprint of PIs' development. We also approach some insights regarding the sustainability, degradation, and recycling of PI-based materials.

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“…It is an important parameter to evaluate the thermal stability of polymers. 26 The higher the E a , the better the thermal stability of the polymer. According to the relevant thermodynamic values obtained from the TG and DTG curves of two kinds of polyimide films at different heating rates, the E a s of two kinds of PIs in different atmospheres were calculated by Flynn-Wall-Ozawa, Kissinger-Akahira-Sunose and Kissinger methods, respectively, and the values were summarized and compared in Table 4.…”

Section: Determination Of E a Smentioning

confidence: 99%

Thermal degradation kinetics of transparent fluorinated poly(imide siloxane) copolymers

Zeng

et al. 2020

High Performance Polymers

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Fluorinated polyimide films are widely used in the field of flexible display because of their excellent optical transmittance. Based on previous studies, the adhesion to other substrates of fluorinated polyimide films have been improved by incorporating GAPD into the macromolecular chains, but their heat resistance is not yet very clear. In this study, thermal behaviors of fluorinated polyimide films (PIs) with and without GAPD were studied in N2 ambient and atmosphere by TG-DTG analysis under non-isothermal conditions. Activation energies (Eas) of PIs were calculated by Flynn-Wall-Ozawa method, Kissinger-Akahira-Sunose method and Kissinger method. In addition, mechanisms of thermal decomposition reaction were determined by Coats-Redfern method. By comparison, the Eas of PIs in the same atmosphere were similar and the thermal reaction mechanisms were essentially the same, indicating that adhesion of fluorinated polyimide can be improved by adding appropriate amount of GAPD, while the excellent optical permeability and heat resistance of fluorinated polyimide can be maintained, further expanding its application in flexible display and other fields.

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Characterization and thermal degradation kinetics of thermoplastic polyimide based on BAPP

Cited by 11 publications

References 21 publications

Preparation and properties of a novel quaternary copolymerized thermoplastic polyimide

Preparation and properties of a novel quaternary copolymerized thermoplastic polyimide

New High-Performance Materials: Bio-Based, Eco-Friendly Polyimides

Thermal degradation kinetics of transparent fluorinated poly(imide siloxane) copolymers

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