Modification of bisphenol-A based bismaleimide resin (BPA-BMI) with an allyl-terminated hyperbranched polyimide (AT-PAEKI)

Qin, Haixiang; Mather, Patrick T.; Baek, Jong‐Beom; Tan, Loon‐Seng

doi:10.1016/j.polymer.2006.02.062

Cited by 80 publications

(40 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bismaleimide-(BMI-) and Polyimide-(PI-) based systems are among the more thermally stable thermosetting resins that are fast replacing the widely used epoxy resins. The unique properties of BMI resins, such as low moisture absorption, high crosslink density, good chemical resistance, and high glass transition temperature (Tg) make these resins suitable for prepregs, adhesives, electrical packaging, and other composite applications [1][2][3]. The properties they exhibit are directly related to the microstructure, with high cross-linking density, inherent aromatic structure and rigid molecular network.…”

Section: Introductionmentioning

confidence: 99%

Cure Kinetics and Activation Energy Studies of Modified Bismaleimide Resins

Chandran¹,

Krishna²,

Rai

et al. 2012

ISRN Polymer Science

View full text Add to dashboard Cite

The cure kinetics and activation energy (Ea) of bismaleimide homopolymer and modified bismaleimide resin systems with different chain extenders were investigated. The bismaleimide resin under investigation was bismaleimidodiphenyl methane (BMPM) and the chain extenders were (i) O-O diallyl bisphenol A (DABA) and (ii) methylenedianiline (MDA). Dynamic multiheating DSC method was used to study the kinetics of the curing process. Activation energies were determined for both unmodified and modified resins from nonisothermal multiheating rate DSC tests by using Ozawa and Kissinger models. Activation energy for BMPM homopolymer increased from 95 kJ/mol to 125 kJ/mol as a function of conversion. For the MDA-modified system the activation energy was independent of percentage conversion, at 108 kJ/mol. In the case of DABA-modified bismaleimide the activation energy increased steadily at 6 kJ/mol from 10 to 100% conversion.

show abstract

Section: Introductionmentioning

confidence: 99%

Cure Kinetics and Activation Energy Studies of Modified Bismaleimide Resins

Chandran¹,

Krishna²,

Rai

et al. 2012

ISRN Polymer Science

View full text Add to dashboard Cite

show abstract

“…The current focus of attention in this field has been directed to finding homogeneous mixtures and exploring the beneficial properties that may be gained by blending. 12,[15][16][17] Early investigations related to blending PMMA with polyimides showed that PMMA did not form miscible blends with any of the polyimides it was paired with. Fluorinecontaining polyimides, especially those based on 6FDA, have been of interest because of their excellent physical and optical properties and their solubility in common solvents, enabling their utilization in polymer-polymer blending solutions.…”

Section: Introductionmentioning

confidence: 99%

Novel Miscible Blends Composed of Poly(Methyl Methacrylate) and 2,2-Bis(3,4-Carboxyphenyl)Hexafluoropropane Dianhydride-Based Polyimides with Optical Grade Clarity

Kim

2009

Mater. Trans.

View full text Add to dashboard Cite

Several blends of polymers that varied concentrations of poly(methyl methacrylate) (PMMA) and polyimides based on 2,2 0 -bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA) were prepared in film form by solution casting and using various solvents. The miscibility of the blended films was correlated through a differential scanning calorimeter (DSC), Fourier transform infrared spectroscopy (FTIR), and an image analyzer. DSC thermograms revealed two glass-transition temperatures (T g ) for specimens using tetrahydrofuran (THF) as a casting solvent, indicating immiscibility; on the other hand, samples using methyl chloride (MC) and cyclohexanone showed a single T g , indicating miscibility between the two polymers. The phase separation temperature for the miscible samples showed lower critical solution temperature type (LCST-type) behavior and reached its minimum when the content was about 70 mass% PMMA. Both the transmittance and haze of the miscible blended films were measured according to the American Standards Testing Method (ASTM) specification D1003. The transmittance for 6FDA-6FpDA/PMMA had a value of about 85% in the visual light range. However, 6FDA-6FpDA:DABA 2 : 1/PMMA showed a low transmittance below wavelengths of 550 nm. For haze, all of the films were clear with values of less than 1%. The mechanical scratch resistance was measured by pencil test (ASTM 3363). Increasing the 6FDA-6FpDA polyimide content was found to increase the scratch resistance of the films.

show abstract

“…Qin et al synthesised an allyl terminated hyperbranched poly(ether-ketone-imide) ( Figure 20) as a BMI modifier to try and overcome the shortcomings associated with the aliphatic polyesters used previously [87,88]. Unusually for a toughening additive, this approach led to improvements in all of the key areas of processability, Tg (from 244 to 264 °C), modulus (from 3.4 to 3.8 GPa) and fracture toughness (from 0.48 to 0.55 MPa m 1/2 ).…”

Section: Hyperbranched Polymersmentioning

confidence: 99%

Modern advances in bismaleimide resin technology: A 21st century perspective on the chemistry of addition polyimides

Iredale¹,

Ward

Hamerton

2017

Progress in Polymer Science

241

152

View full text Add to dashboard Cite

General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available: http://www.bristol.ac.uk/pure/about/ebr-terms Hamerton, E-mail: ian.hamerton@bristol.ac.uk This review is respectfully and affectionately dedicated to Dr Horst D Stenzenberger, who has been an inspirational figure in modern BMI chemistry, always happy to share his extensive knowledge of this field. ABSTRACT:The chemistry of bismaleimides (BMIs), their blends and copolymers is reviewed critically with particular emphasis placed on the development of the field after 1990, which was marked by several comprehensive review articles. A general introduction to the structure property relationships of BMIs is presented, outlining the development of the preparative chemistry, and the early strategies adopted to address the inherent brittleness of the cured 'first generation' BMI polymers. 'Second generation', diallylbisphenol-toughened BMIs, form the basis of the benchmark commercial systems, and the polymerization mechanism is discussed. The current review is placed in context, addressing the issues of cost, processing and precursor toxicity, the major barriers to wider acceptance of BMIs. The main body of the review evaluates a number of observations made by Dr Horst Stenzenberger in 1990, for the future development of BMI technology. Hence, the synthesis of novel bismaleimide building blocks, incorporation of new thermoplastics and additives, and blending with new thermosetting comonomers are all discussed in detail. The aforementioned review had been written before the concept of nanocomposites or shape memory polymers had been explored with BMIs, but the fields have since grown (especially in the case of the former topic) and are reviewed herein. The application of BMIs to continuous fibre composites is one of the proposed fields of commercial development. The topic falls a little beyond the scope of the present review of BMI chemistry, and is the subject of another publication, but a brief discussion of the most recent developments is presented. The review is concluded with some thoughts about the future outlook for BMI chemistry.

show abstract

Modification of bisphenol-A based bismaleimide resin (BPA-BMI) with an allyl-terminated hyperbranched polyimide (AT-PAEKI)

Cited by 80 publications

References 32 publications

Cure Kinetics and Activation Energy Studies of Modified Bismaleimide Resins

Cure Kinetics and Activation Energy Studies of Modified Bismaleimide Resins

Novel Miscible Blends Composed of Poly(Methyl Methacrylate) and 2,2-Bis(3,4-Carboxyphenyl)Hexafluoropropane Dianhydride-Based Polyimides with Optical Grade Clarity

Modern advances in bismaleimide resin technology: A 21st century perspective on the chemistry of addition polyimides

Contact Info

Product

Resources

About