A Long-Chain Alkylation of Dialdehyde Starch to Improve Its Thermal Stability and Hydrophobicity

Table 1

Results of orthogonal test.

Number	Figure 1(d)	Figure 1(c)	Figure 1(b)	Figure 1(a)	Yield (%)
	in-feed molar ratio (mol/mol)	reaction temperature (°C)	reaction time (h)	acetic acid content (%)
1	1 : 0.5	40	4	1	40.21
2	1 : 0.7	50	8	1	32.09
3	1 : 0.9	60	10	1	28.78
4	1 : 0.9	40	8	3	44.21
5	1 : 0.5	50	10	3	30.03
6	1 : 0.7	60	4	3	34.22
7	1 : 0.7	40	10	4	35.15
8	1 : 0.9	50	4	4	25.71
9	1 : 0.5	60	8	4	38.26
	36.17	39.86	33.38	33.69
	33.82	29.28	38.19	36.15
	32.90	33.75	31.01	33.04
	3.27	10.58	7.18	3.11