关键词: 聚苯醚, 三烯丙基异氰酸酯, 相行为, 固化动力学

Abstract:

The phase diagram of PPE/TAIC(poly(2,6-dimethy-1,4-phenylene ether)/triallylis0cyanurate)sys-tems is analyzed in this paper.The results show that(1)the system possesses an upper critical solution tempera-ture f UCST)behavl 0r and its phase separation is completely reversible in all investigated blends;(2)the curve ofthe vitrification point( )intersects with that of the cloud point at a PPE content(mass fraction,below the same)
of about 60% ;and(3)when the PPE content is less than 60%,the value of Tg of the system is about 323 K,andwhen the PPE content exceeds 60% ,the system becomes homogeneous and no phase separation occurs in the wholetemperature range.Moreover,according to the experiments caried out by the atom force microscope(AFM)andbased 0n relevant inferences.the cured PPE/TAIC system possessing a morphology via the reaction-induced spinod-al decompositi0n exhibits good chemical resistance.The curing reaction and curing kinetics characteristics of PPE/TAlC svstem are also investigated by FTIR spectra and the program-heated DSC method,focusing on the practicalfabrication process of a copper clad laminate.

Key words: poly(2,6-dimethy-1,4-phenylene ether), triallylisocyanurate, phase behavior, curing kinetics