PMA

pyromellitic acid anhydride
無水ピロメリット酸. ポリイミド原料単量体.
pyromellitic acid anhydride; or PMDA(pyromellitic dianhydride); an organic monomer which polymerizes to form polyimide; e.g. PMDA-ODA(oxydianiline) PI(polyimide), an insulating layer material and an encapsulant for PGA(pin grid a

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