Unlock instant, AI-driven research and patent intelligence for your innovation.

Modified polyetherimide/bismaleimide resin and preparation method thereof

A technology of maleimide resin and bismaleimide, which is applied in the field of modified polyetherimide/bismaleimide resin and its preparation, can solve the problem that the compatibilizer does not greatly improve the system Performance and other issues, to achieve the effect of comprehensive performance improvement, good manufacturability, and easy process

Inactive Publication Date: 2013-07-10
SUZHOU UNIV +1
View PDF11 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Voronov et al. studied the compatibility of polypropylene grafted peroxides to polypropylene / unsaturated polyester blends and found that the compatibilization effect was indeed achieved, but the presence of compatibilizers did not significantly improve the compatibility of the system. Properties (see literature: S. Voronov, V. Samaryk, Y. Roiter, J. Pionteck, P. Potschke, S. Minko, I. Tokarev, S. Varvarenko, N. Nosova. Compatibilization of Polymer Blends with High-Molecular- Weight Peroxides, Journal of Applied Polymer Science, 2005, 96, 232–242.)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Modified polyetherimide/bismaleimide resin and preparation method thereof
  • Modified polyetherimide/bismaleimide resin and preparation method thereof
  • Modified polyetherimide/bismaleimide resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Take 2.2g of distilled water and 17.9g of γ-aminopropyltrimethoxysilane and mix evenly at room temperature. After stirring for 15min, slowly raise the temperature to 60 o C, reaction 3h. After the reaction is completed, vacuum-dry and distill methanol off to obtain transparent amino-terminated hyperbranched polysiloxane with a number average molecular weight of 5120 and a branching degree of 0.72. The structure is:

[0028] .

[0029] 9 g of polyetherimide was dissolved in 60 g of methylene chloride to form a homogeneous solution A. Add 0.3g of the above-prepared amino-terminated hyperbranched polysiloxane to solution A, stir evenly to form solution B; add 30g of 2,2'-diallyl bisphenol A to solution B, and heat up to 150 oC, slowly add 50g N,N'-4,4'-diphenyl ether bismaleimide; heat preservation and stirring for 30min, obtain a kind of transparent reddish-brown liquid, obtain a kind of modified polyetherimide / Bismaleimide resin.

Embodiment 2

[0031] Take 2.0g of distilled water and 22.1g of γ-aminopropyltriethoxysilane and mix evenly at room temperature. After magnetic stirring for 15min, slowly raise the temperature to 60 o C, reaction 4h. After the reaction is completed, vacuum dry and evaporate ethanol to obtain transparent and viscous amino-terminated hyperbranched polysiloxane with a number average molecular weight of 6818 and a degree of branching of 0.68.

[0032] 7.5g of polyetherimide was dissolved in 65g of methylene chloride to form a homogeneous solution A. Add 1.7g of the amino-terminated hyperbranched polysiloxane prepared above to solution A, stir evenly to form solution B; add 35g of 2,2'-diallyl bisphenol A to solution B, and heat up to 150 o C, slowly add 50g N,N'-4,4'-diphenylmethane bismaleimide, keep stirring for 30min, obtain a kind of transparent reddish-brown liquid, obtain a kind of modified polyetherimide / Bismaleimide resin.

Embodiment 3

[0034] Take 2.3g of distilled water and 22.1g of γ-aminopropyltriethoxysilane and mix them evenly at room temperature, and after magnetic stirring for 15min, slowly raise the temperature to 55 o C, reaction 5h. After the reaction is complete, vacuum-dry and evaporate ethanol to obtain transparent and viscous amino-terminated hyperbranched polysiloxane with a number-average molecular weight of 7758. Its infrared spectrum, hydrogen nuclear magnetic resonance spectrum and silicon nuclear magnetic resonance spectrum are shown in figure 1 , 2 and 3.

[0035] 8g of polyetherimide was dissolved in 60g of dichloromethane to form a homogeneous solution A. Add 0.4g of the above-prepared amino-terminated hyperbranched polysiloxane to solution A, stir evenly to form solution B; add 37g of 2,2'-diallyl bisphenol A to solution B, and heat up to 145 o C, slowly add 50g N,N'-4,4'-diphenylmethane bismaleimide, keep stirring for 30min, obtain a kind of transparent reddish-brown liquid, obta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Branching factoraaaaaaaaaa
Branching factoraaaaaaaaaa
Branching factoraaaaaaaaaa
Login to View More

Abstract

The invention discloses modified polyetherimide / bismaleimide resin and a preparation method thereof. The preparation method comprises the following steps of: dissolving 15-20 parts by weight of polyetherimide in 120-140 parts by weight of methylene dichloride, and then adding 0.5-3.5 parts by weight of amino-terminated hyperbranched polysiloxane to obtain a mixed solution; and adding 60-80 parts by weight of diallyl phenyl compound into the mixed solution, raising the temperature to 120-155 DEG C, then adding 100 parts by weight of bismaleimide, and stirring under the condition of heat insulation till the mixture becomes transparent liquid, thus obtaining the modified polyetherimide / bismaleimide resin. Compared with polyetherimide / bismaleimide, the modified resin has good compatibility, not only maintains excellent heat resistance, but also achieves improved mechanical properties and dielectric properties. The adopted preparation method has the advantages of wide resources of raw materials, simpleness in operation and the like.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a modified polyetherimide / bismaleimide resin and a preparation method thereof. Background technique [0002] Bismaleimide resin is the representative of today's heat-resistant thermosetting resins. Like other thermosetting resins, toughening has always been the main content of research and development of bismaleimide resins. At present, the most commonly used modification method is the copolymerization with organic compounds (such as diallyl compounds, diamines, etc.), and has made major progress and applications. However, with the rapid development of cutting-edge industries such as aerospace and electronics, more and higher requirements are put forward for thermosetting resins. The dielectric constant of existing bismaleimide resins is relatively high, and the toughness needs to be further improved. [0003] High-performance thermoplastic polymer modified bismaleimide resi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L79/08C08L83/08C08K5/3415C08K5/13C08G77/26
Inventor 顾嫒娟孙斌梁国正袁莉
Owner SUZHOU UNIV