Bis(3-Ethyl-5-Methyl-4-Maleimidophenyl)Methane manufactured by Yangchen Tech represents an advanced bismaleimide (BMI) thermoset precursor engineered through strategic alkyl substitution on the diphenylmethane scaffold. The molecular architecture incorporates precisely positioned ethyl and methyl functional groups at the 3- and 5- positions respectively of the aromatic rings, creating optimized steric and electronic configurations.
Specification
| Chemical Name |
Bis(3-ethyl-5-methyl-4-maleimidophenyl)methane |
| Product Number |
BMI-500 |
| Other Name |
BMI-70 |
| CAS |
105391-33-1 |
| Test |
Specifications |
| Appearance |
White powder |
| Purity (HPLC) |
min. 97.0 area% |
| Purity (with Total Nitrogen) |
min. 98.0 % |
| Melting point |
163.0 to 167.0 °C |
| Storage Conditions |
Cool and dry place |
Technical attributes
This engineered BMI variant Bis(3-Ethyl-5-Methyl-4-Maleimidophenyl)Methane maintains the fundamental thermal stability characteristic of diphenylmethane-based bismaleimides while demonstrating significant performance enhancements. The tailored substitution pattern confers:
-
Superior solubility parameters (δ=22.5 MPa¹/²) in aprotic polar solvents, facilitating solution processing
-
Exceptional dielectric properties (ε_r=2.8 @10GHz, tanδ=0.0025) critical for high-frequency applications
-
Controlled crosslink density through optimized maleimide group reactivity
| Performance Metric |
Conventional BMI Resin |
Our Product |
Improvement |
| Dielectric Loss (Df) @28GHz |
0.0035-0.004 |
≤0.0028 |
≥20% |
| Z-axis CTE (Coefficient of Thermal Expansion) (ppm/°C) |
45-50 |
32-35 |
30% |
| Peel Strength (N/mm) |
0.65-0.75 |
0.92-1.05 |
40% |
Applications
Bis(3-ethyl-5-methyl-4-maleimidophenyl)methane manufactured by Yangchen TECH is a high-performance bismaleimide monomer widely used in:
1. Thermoset Polymers: Enhances thermal stability and mechanical strength in aerospace composites.
2. Electronics: Critical for epoxy curing in semiconductor encapsulation and circuit board coatings.
3. Adhesives & Coatings: Delivers superior heat resistance (>300°C) for industrial applications.
5G/6G high-frequency electronic application scenarios
As the core matrix material of millimeter-wave communication substrates is mainly used in:
✅ Millimeter-wave antenna array substrates (24.25-52.6GHz NR band)
✅ Low-loss copper foil laminated dielectric layer (insertion loss <0.15dB/cm@28GHz)
✅ High-density interconnect (HDI) package substrates
✅ Phased array radar TR module packaging
Why Choose Yangchen Tech?
1. Industry-Leading Expertise
Yangchen Tech specializes in synthesizing maleimide derivatives with >20 years of R&D experience. Our proprietary purification process ensures >98% HPLC purity, meeting stringent requirements for advanced material research .
2. Scalable Production
With a 500kg/month production capacity and ISO-certified facilities, we guarantee consistent supply for both R&D and industrial-scale projects .
3. Rigorous Quality Control
Every batch undergoes NMR, HPLC, and mass spectrometry validation to ensure.
4. Tailored Solutions
Customize packaging, purity grades (97–99%), and bulk pricing. Contact us for dedicated technical support and formulation guidance.
Packaging
Safety & Handling
- GHS Hazard Statements: H319 (Causes eye irritation), H372 (Long-term organ damage), H400 (Aquatic toxicity) .
- Precautionary Measures: Use PPE (gloves, goggles) and ensure adequate ventilation. Store away from moisture and oxidizing agents.
FAQs
Q: What is the lead time for bulk orders?
A: Standard delivery within 2–3 weeks; expedited shipping available.
Q: Do you provide COA and MSDS?
A: Yes, all orders include Certificate of Analysis (CoA) and Safety Data Sheets (SDS) compliant with OSHA/ECHA .
Trust Yangchen Tech for premium-grade Bis(3-ethyl-5-methyl-4-maleimidophenyl)methane. Welcome Inquiry!
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