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Beyond Epoxy: High Performance Thermosets Part Six – Cyanate Esters for Electronic Packaging Applications

June 12, 2023 By Jeffrey Gotro Leave a Comment

This is the final post in this series on high performance thermosetting polymers.  This post discussed the use of specialized cyanate esters for high performance electronic packaging applications. Dicyanate resins are versatile thermosets and have been used in a wide variety of applications. For example, RTX-366 (Hunstman Chemical), shown in Figure 1, is a high molecular ... [Click to Continue...]

Beyond Epoxy: High Performance Thermosets Part Five, Electronic Packaging

May 30, 2023 By Jeffrey Gotro 4 Comments

The previous post covered an introduction to cyanate ester thermosetting resins. This post will discuss the main applications of cyanate ester thermosets.  In the 1980’s the main applications for cyanate esters were in electronic applications. Specifically, cyanate esters were used in high performance circuit boards and semiconductor substrates.  The substrate technical drivers ... [Click to Continue...]

Beyond Epoxy: High Performance Thermosets Part Four – Cyanate Esters

May 15, 2023 By Jeffrey Gotro Leave a Comment

The previous posts in this series covered various types of bismaleimide resins and formulations.  The next three posts will discuss cyanate ester resins and formulated products. Dicyanate resins, alternatively known as cyanate ester resins, describes both a family of monomers and oligomers with reactive cyanate end groups on an aromatic ring and the resulting cured resin ... [Click to Continue...]

Beyond Epoxy: High Performance Thermosets Part Three – Liquid Bismaleimides

May 1, 2023 By Jeffrey Gotro Leave a Comment

The previous two posts covered aromatic BMI resins and curing mechanisms leading to highly crosslinked and high Tg thermosets.  Another important class of bismaleimides are liquid bismaleimides.   Liquid BMIs with long-chain aliphatic structures between the maleimide groups are used for low modulus, low Tg, high flexibility applications. For electronic applications, BMIs have ... [Click to Continue...]

Beyond Epoxy: High Performance Thermosets Part Two – Bismaleimide Cure Chemistry

April 17, 2023 By Jeffrey Gotro Leave a Comment

This post is part two in a series on high performance thermosets and will cover aromatic bismaleimide curing chemistry. Bismaleimides are thermosetting polyimides that cure by addition reactions that avoid formation of volatiles. Unlike condensation polyimides (such as DuPont Kapton® or Ube Upilex®) where the polymerization mechanism results in the evolution of volatiles ... [Click to Continue...]

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Polymer Innovation Blog

I’m Dr. Jeff Gotro and welcome to the Polymer Innovation Blog. Over the last 40 years I have been involved in polymer research, along with product and process development. I acquired invaluable experience working for IBM, AlliedSignal, Honeywell and Ablestik Labs (now Henkel). In this blog, I (along with some guest contributors) will share our experiences, tips, and “tricks of the trade” to get more out of your innovation efforts and discuss new trends and technical advances in the polymer industry.
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Polymers in Electronic Packaging

polymers in electronic packaging Are you confused about what is electronic packaging? Have you ever wondered what type of polymers and polymer-based composites are used in electronics? Learn More...

Practical Tips for Curing Thermosets

practical tips for curing thermosets Have you ever had a question about the degree of cure or is your part fully cured after processing? Confused about what is gelation or how does vitrification impact thermoset curing? Learn More...

Rheology of Thermosets

rheology of thermosets Have you ever had a question about measuring the rheological properties of thermosets Didn’t know what is the right experimental approach to get the right rheological information? Learn More...

Dielectric Cure Monitoring of Thermosets

Dielectric Cure Monitoring of Thermosets Do you have a need for an in-situ cure monitor for a thermoset process but don’t know where to start? Are you confused about the terminology used in dielectric spectroscopy? Learn More...

Introduction to Biopolymers and Bioplastics

Introduction to Biopolymers and Bioplastics Would you like to know how sustainable are bio-based polymers? Or what is the market size and growth rate for bioplastics? Or have questions about the biomass supply chain? Learn More...

Thermoset Characterization

Thermoset Characterization Have you ever had a question about how to measure a physical property of a thermoset? Confused about what is gelation or how does vitrification impact thermoset curing profiles? Or wondered how to measure the glass transition temperature of an epoxy or polyester composite? Learn More...

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