低介電聚氧代氮代苯并環己烷奈米複合材料合成及其性質研究

Preparation and Properties of Low-Dielectric Polybenzoxazine Nanocomposites

曾敏琪(Min-Chi Tseng)

指導教授 ： 劉英麟

中原大學/工學院/化學工程研究所/碩士(2009年)

https://doi.org/10.6840/cycu200900933

摘要

本研究首先以formaldehyde、furfurylamine分別與phenol或bisphenol-A反應，分別形成含呋喃具有單官能基之氧代氮代苯并環己烷單體(Ph-FBz)以及含呋喃具有雙官能基之氧代氮代苯并環己烷單體(BPA-FBz)，更進一步的以BPA-FBz與雙(4-馬來醯亞胺基苯)甲烷(DDM-BMI)為單體，利用Diels-Alder Reaction製備出主鏈含有氧代氮代苯并環己烷的可交聯線性高分子(BPA-BMI)。
其後，以共聚合的方式將Ph-FBz、BPA-FBz、BPA-BMI分別與Methacryl POSS (MMA-POSS)硬化形成高分子聚合物，silica的存在可以阻絕熱而避免焦炭進一步氧化，達到難燃的效果;因此將silica導入benzoxazine結構中，可以藉由官能基具有阻燃的特性，以提升polybenzoxazine的熱性質，並以熱重損失分析儀(TGA)探討之。
一般而言，benzoxazine有硬而脆的性質，將POSS中較為柔軟的Si-O-Si導入benzoxazine結構中，也可以增加聚合物的韌性，以改善其硬而脆的性質，此部分可由萬能強力測試機(Instron)測試。
由於POSS本身為非極性分子且含有均一奈米孔洞，而空氣的介電常數值為1，將POSS導入benzoxazine結構中，可以增加自由體積，有效的降低材料的介電常數。

關鍵字

低介電 ； 聚氧代氮代苯并環己烷

並列摘要

In this study , two novel benzoxazine monomers containing furan groups：one
monomer is monofunctional benzoxazine(Ph-FBz) , the other is bifunctional benzoxazine(BPA-FBz) , they have been synthesized from phenol or bisphenol-A with furfurylamine and formaldehyde. Furthermore , a high molecular weight polymer (BPA-BMI) possessing reactive benzoxazine groups in the mainchain was prepared through the Diels-Alder reaction using BPA-FBz and a bismale-imide (BMI) as monomers.
The chemical structures of these novel benzoxazine were confirmed by FT-IR. And then blending benzoxazine monomers (Ph-FBz、BPA-FBz and BPA-BMI) with Methacryl POSS in various weight ratios , respectively.
As we know , the existence of silica can resist heat and avoid further oxidation of char to effect of flame retardant. SO blending silica into benzoxazine can enhance thermal stability and comfirmed by Thermal Gravimetric Analysis.
In general, to improve benzoxazine hard and brittle nature ,introduction of Si-O-Si soft bond in POSS into benzoxazine structure can also increase the toughness of polymers and can comfirmed by Instron.
POSS itself as a result of non-polar molecule and contains uniform nano-holes, and the air dielectric constant value of 1, the structure of POSS into benzoxazine, free volume can be increased, reduce the effective dielectric constant materials.

並列關鍵字

Low-Dielectric ； Polybenzoxazine

參考文獻

O., Synthesis Of Nylon 6-Clay Hybrid By Montmorillonite Intercalated With

-Caprolactam. Journal of Polymer Science Part A: Polymer Chemistry 1993,

2. Ishida, H., Polymer Layered Silicate Nanocomposites. Advanced Materials

1996, 8, 29-35.

3. Ishida, H., Polyhedral Oligomeric Silsesquioxane(POSS)-based Polymers.