Design and Evaluation of a Cyanate Ester Containing Oxaspirocyclic Structure for Electronic Packaging

Table 1

Elemental analysis of the products.

Sample	C/%	H/%	O%	N/%
IMP 1 (C23H24O4)	75.49	6.717	17.79	—
	(75.80)	(6.638)	(17.56)	—
IMP 2 (C35H36O6)	76.56	6.601	16.84	—
	(76.06)	(6.566)	(17.37)	—
PCBDCy (C37H34O6N2)	74.12	5.53	15.87	4.48
	(73.75)	(5.65)	(15.95)	(4.65)

(Theoretical values are labeled in parentheses).