Utilization of enzymatic hydrolysate from corn stover as a precursor to synthesize an eco-friendly adhesive for plywood II: investigation of appropriate manufacturing conditions, curing behavior, and adhesion mechanism

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 2 Identified chemical compounds in evolved gas derived from uncured EH and EHADP adhesive heated at 170 °C for 60 s

Samples	Peak number	RT (min)	SI	Compound	CAS	MW	Formula	Chemical structure number
EH only (100/0)	1	4.55	85	Furfural	98–01-1	96	C₅H₄O₂	A
	2	7.53	94	4H-Pyran-4-one,2,3-dihydro-3,5-dihydroxy-6-methyl-	28,564–83-2	144	C₆H₈O₄	B
	3	8.27	94	5-Hydrxoymethylfurfural	67–47-0	126	C₆H₆O₃	C
EHADP (90/10)	1′	4.59	98	Furfural	98–01-1	96	C₅H₄O₂	A
	2′	4.66	96	3-Furaldehyde	498–60-2	96	C₅H₄O₂	I
	3′	5.78	97	2-Furancarboxaldehyde, 5-methyl-	620–02-0	110	C₆H₆O₂	II
	4′	6.73	89 89	2,5-Furandicarboxaldehyde 2-methoxy-6-methylpyrazine	823–82-5 2882–21-5	124 124	C₆H₄O₃ C₆H₈N₂O	III IV
	5′	7.39	95	4H-Pyran-4-one,2,3-dihydro-3,5-dihydroxy-6-methyl-	28,564–83-2	144	C₆H₈O₄	B
	6′	8.23	96	5-Hydrxoymethylfurfural	67–47-0	126	C₆H₆O₃	C