| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5210818 | Reactive and Functional Polymers | 2008 | 9 Pages |
Abstract
Dicyclopentadiene-containing low molecular weight poly(phenylene oxide) (PPO) novolac (DCPD-PPO) was prepared by redistributing regular PPO with dicyclopentadiene phenol novolac (DCPDNO), using benzoyl peroxide (BPO) as an initiator in toluene. The synthesized dicyclopentadiene-containing redistributed-PPO novolac (DCPD-PPO) with terminal phenolic hydroxyl group and low molecular weight was used in the modification of dicyclopentadiene containing epoxy (DCPD-epoxy)/4,4â²-diamino-diphenylmethane (DDM) network system. The thermal and dielectric properties of the cured DCPD-PPO/DCPD-epoxy system were compared with those of bisphenol A containing DCPD-PPO/BPA-epoxy or BPA-PPO/DCPD-epoxy systems. In addition to, a higher glass transition temperature and thermal stability, the cured DCPD-PPO/DCPD-epoxy resins exhibit lower dielectric constant, dissipation factor, coefficient of thermal expansion and moisture absorption than those of bisphenol A based redistributed-PPO/epoxy.
Related Topics
Physical Sciences and Engineering
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Authors
Hann-Jang Hwang, Su-Wen Hsu, Chia-Lung Chung, Chun-Shan Wang,