跳至主要内容

DMCBDA(CAS:137820-87-2): A Key Dianhydride Monomer for High-Performance Polyimide Materials

 

Introduction

In the development and application of next-generation high-performance polyimide (PI) materials, DMCBDA (Dimethyl-cyclobutane-1,2,3,4-tetracarboxylic dianhydride) has gained increasing attention as a critical dianhydride monomer. With its unique molecular structure, DMCBDA not only enhances the optical transparency of polyimides but also effectively reduces their dielectric constant, thereby meeting the high-performance requirements of flexible electronics, 5G/6G communications, and advanced optical devices.

Key Parameters of DMCBDA

Parameter

Value / Characteristics

Chemical Name

Dimethyl-cyclobutane-1,2,3,4-tetracarboxylic dianhydride

Molecular Formula

C₁₀H₈O₆

Molecular Weight

224.17 g/mol

Appearance

White to off-white solid powder

Melting Point

~220–230 °C

Purity

≥99% (industrial/electronic grade)

Features

Methyl substitution enhances transparency, lowers dielectric constant, and reduces water absorption

Functions of DMCBDA

1. Enhancing Optical Transparency

By introducing methyl substituents into the cyclobutane backbone, DMCBDA reduces tight molecular packing. As a result, polyimides synthesized from this monomer exhibit higher light transmittance, making them particularly suitable for transparent PI films.

2. Lowering the Dielectric Constant

Compared to traditional dianhydride monomers, DMCBDA significantly reduces the dielectric constant of polyimides. This improves the efficiency of high-speed signal transmission, making it an excellent fit for 5G/6G communication materials.

3. Reducing Water Absorption

The structural characteristics of DMCBDA weaken the interactions between polar groups, thereby lowering the moisture uptake of polyimide films and improving their stability in humid environments.

Application Scenarios of DMCBDA

1. Flexible Displays and Optical Films

DMCBDA is widely used in OLED panels, foldable screens, and optical protective films. Its high transparency and mechanical flexibility make it a core material in the flexible electronics industry.

2. High-Speed Communications and Low-Dielectric Materials

In high-frequency circuit substrates, chip packaging layers, and 5G/6G communication devices, DMCBDA-based polyimides serve as low-dielectric materials, effectively reducing signal loss and enhancing transmission performance.

3. Aerospace and Advanced Materials

Thanks to its low water absorption and stable thermal properties, DMCBDA is increasingly applied in spacecraft optical windows and high-frequency radar antenna materials, expanding its use in advanced aerospace technologies.

Conclusion

As an innovative transparent and low-dielectric dianhydride monomer, DMCBDA plays an essential role in the field of high-performance polyimide materials. Combining high optical transparency, low dielectric constant, and reduced water absorption, it is widely applicable in flexible electronics, optical devices, 5G/6G communication, and aerospace materials.

For R&D teams, the market potential of DMCBDA is substantial. It not only meets the demand for lightweight, transparent materials in emerging electronics but also enhances reliability in high-end applications. With the continuous expansion of downstream markets, DMCBDA is poised to become a mainstream high-performance polyimide precursor in the future.

Ready to Accelerate Your Research?
For technical datasheets, sample requests, or customized catalyst solutions, contact the UIV CHEM technical support team today. Let us help you achieve breakthrough results in organic synthesis and materials innovation!

Get a quote now!

标签：

评论

发表评论

此博客中的热门博文

Properties and Applications of Platinum(II) Chloride (PtCl₂)

  Platinum(II) chloride (PtCl₂ ， CAS:10025-65-7 ) is a highly versatile inorganic compound that has gained significant attention in the fields of chemistry, industry, and medicine. With its unique chemical properties, PtCl₂ serves as a foundational material for the synthesis of platinum-based complexes, catalysts, and even life-saving cancer drugs. What is Platinum(II) Chloride (PtCl₂)? Platinum(II) chloride is a chemical compound consisting of platinum and chlorine, represented by the formula PtCl₂ . It appears as a dark brown to black crystalline powder and is slightly soluble in water. This compound is a cornerstone of platinum coordination chemistry and is widely used in catalysis, materials science, and pharmaceuticals. Key Properties of PtCl₂ ·  Chemical Formula:  PtCl₂ ·  Molecular Weight:  265.99 g/mol ·  Appearance:  Dark brown to black powder ·  Solubility:  Slightly soluble in water; dissolves in hydrochloric acid to form complex i...
发表评论
阅读全文

The Preparation Process of NMP: Synthesis Method of N-Methyl-2-Pyrrolidone (NMP)

  N-Methyl-2-Pyrrolidone (NMP) is an important organic solvent widely used in various fields, including chemicals, pharmaceuticals, electronics, and energy. Due to its excellent solubility, NMP plays a significant role in batteries, electrolytes, coatings, and oilfield chemicals. To meet industrial production demands, the process of NMP production is crucial. Overview of NMP Preparation Methods The main industrial synthesis methods for NMP are: ·  γ-butyrolactone (GBL) and methylamine reaction method ·  2-pyrrolidone methylation method ·  Carbamate reduction method Among these, the γ-butyrolactone and methylamine reaction method is considered the most common and efficient method for industrial production. Let’s take a closer look at the specific steps and principles of this method. I. Synthesis of NMP by γ-Butyrolactone and Methylamine Reaction Reaction Principle:  This method involves reacting γ-butyrolactone (GBL) with methylamine (CH₃NH₂) to produce NMP and ...
发表评论
阅读全文

Application of 5-Methyl-1H-benzotriazole in Chip Cleaning

  In the semiconductor industry, cleaning and protecting the chip surface is a crucial step for enhancing chip performance and quality. 5-Methyl-1H-benzotriazole (C7H 7 N3 ， CAS ： 136-85-6 )  has emerged as an innovative cleaning agent due to its excellent chemical properties. It is widely used in chip cleaning processes. This article explores the specific applications, mechanisms, and potential impact of it  in chip cleaning. 5-Methyl-1H-benzotriazole powder   1. Chemical Properties It  is an organic compound with a structure composed of a benzene ring and a triazole ring. The benzene ring provides stability, while the triazole ring exhibits strong reducing and metal-affinity properties. In chip cleaning, 5-Methyl-1H-benzotriazole interacts effectively with the metal oxide layer on the chip surface, forming stable complexes. This enables efficient removal of surface contaminants while also preventing metal corrosion. These properties make it  an ideal cho...
发表评论
阅读全文