Meldrum's acid-functionalized bismaleimide, polyaspartimide and their thermally crosslinked resins: Synthesis and properties

IF 4.5 3区工程技术 Q1 CHEMISTRY, APPLIED

Reactive & Functional Polymers Pub Date : 2024-06-15 DOI:10.1016/j.reactfunctpolym.2024.105988

Chao-Chun Hsiao, Jia-Jun Lee, Ying-Ling Liu

{"title":"Meldrum's acid-functionalized bismaleimide, polyaspartimide and their thermally crosslinked resins: Synthesis and properties","authors":"Chao-Chun Hsiao, Jia-Jun Lee, Ying-Ling Liu","doi":"10.1016/j.reactfunctpolym.2024.105988","DOIUrl":null,"url":null,"abstract":"<div><p>Bismaleimides (BMI) and their corresponding polymers could be obtained with diamine compounds as precursors. In this work, a new Meldrum's acid (MA)-functionalized BMI compound (MA-BMI) and a MA-functionalized polyaspartimide (MA-PAsI) were synthesized with a MA-diamine precursor. Based on the MA-mediated ketene chemistry, additional crosslinking reactions and high crosslinking densities were introduced to the crosslinked MA-BMI (CR_MA-BMI) and crosslinked MA-PAsI (CR_MA-PAsI) polymers. This modification brought high glass transition temperatures of 340 °C and 313 °C to crosslinked CR_MA-BMI) and CR_MA-PAsI, respectively. Moreover, the air-trapped microcavities formed with the evolved CO<sub>2</sub> from MA thermolysis reaction attribute to reduce dielectric constants of the crosslinked polymers. The dielectric constants at 40 GHz of CR_MA-BMI and CR_MA-PAsI are 3.01 and 2.21, respectively. Novel maleimide-based resins for high speed and high frequency communication technologies have been demonstrated.</p></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":4.5000,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Reactive & Functional Polymers","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1381514824001639","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

Bismaleimides (BMI) and their corresponding polymers could be obtained with diamine compounds as precursors. In this work, a new Meldrum's acid (MA)-functionalized BMI compound (MA-BMI) and a MA-functionalized polyaspartimide (MA-PAsI) were synthesized with a MA-diamine precursor. Based on the MA-mediated ketene chemistry, additional crosslinking reactions and high crosslinking densities were introduced to the crosslinked MA-BMI (CR_MA-BMI) and crosslinked MA-PAsI (CR_MA-PAsI) polymers. This modification brought high glass transition temperatures of 340 °C and 313 °C to crosslinked CR_MA-BMI) and CR_MA-PAsI, respectively. Moreover, the air-trapped microcavities formed with the evolved CO₂ from MA thermolysis reaction attribute to reduce dielectric constants of the crosslinked polymers. The dielectric constants at 40 GHz of CR_MA-BMI and CR_MA-PAsI are 3.01 and 2.21, respectively. Novel maleimide-based resins for high speed and high frequency communication technologies have been demonstrated.

Abstract Image

查看原文本刊更多论文

梅尔德伦酸官能化双马来酰亚胺、聚天冬氨酰亚胺及其热交联树脂：合成与性能

以二胺化合物为前体可获得双马来酰亚胺（BMI）及其相应的聚合物。在这项工作中，使用 MA 二胺前体合成了一种新的梅氏酸（MA）官能化 BMI 化合物（MA-BMI）和一种 MA 官能化聚天冬酰胺（MA-PAsI）。基于 MA 介导的烯酮化学，交联 MA-BMI (CR_MA-BMI) 和交联 MA-PAsI (CR_MA-PAsI) 聚合物引入了额外的交联反应和高交联密度。这种改性使交联的 CR_MA-BMI 和 CR_MA-PAsI 的玻璃化转变温度分别达到 340 ℃ 和 313 ℃。此外，MA 热解反应中挥发的 CO2 形成的气阱微腔降低了交联聚合物的介电常数。CR_MA-BMI 和 CR_MA-PAsI 在 40 GHz 时的介电常数分别为 3.01 和 2.21。用于高速和高频通信技术的新型马来酰亚胺基树脂已经得到证实。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Reactive & Functional Polymers 工程技术-高分子科学

CiteScore

8.90

自引率

5.90%

发文量

259

审稿时长

27 days

期刊介绍： Reactive & Functional Polymers provides a forum to disseminate original ideas, concepts and developments in the science and technology of polymers with functional groups, which impart specific chemical reactivity or physical, chemical, structural, biological, and pharmacological functionality. The scope covers organic polymers, acting for instance as reagents, catalysts, templates, ion-exchangers, selective sorbents, chelating or antimicrobial agents, drug carriers, sensors, membranes, and hydrogels. This also includes reactive cross-linkable prepolymers and high-performance thermosetting polymers, natural or degradable polymers, conducting polymers, and porous polymers. Original research articles must contain thorough molecular and material characterization data on synthesis of the above polymers in combination with their applications. Applications include but are not limited to catalysis, water or effluent treatment, separations and recovery, electronics and information storage, energy conversion, encapsulation, or adhesion.