Dispersants
A dispersant, polyallylamine technology, applied in the field of dispersants
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Embodiment 1
[0180] Example 1 BuOc 1, ε-cap 12, δ-val 2.
[0181] 2-Butyloctanoic acid (5.0 parts, 25mM Isocarb12 was purchased from Condea), ε-caprolactone (34.18 parts, 300mM was purchased from Aldrich), δ-valerolactone (5.0 parts, 50mM was purchased from Fluka) at 180°C Stir in the presence of zirconium butyl (0.2 parts) for 6 hours under a nitrogen atmosphere. After cooling, the product was obtained as a soft white solid (44 parts). It is intermediate 1, number average molecular weight Mn = 1304, polydispersity = 1.43.
Embodiment 2 to 6
[0183] The intermediates listed in Table 1 below were prepared in the same manner as Intermediate 1 of Example 1 except using the intermediate molar values shown in the table.
[0184]
[0185] Notes to Table 1
[0186] 2-HeDe is 2-hexyldecanoic acid, 2-OcDo is 2-octyldodecanoic acid and 2-DeTe is 2-decyltetradecanoic acid, purchased from Condea as Isocarb 16, Isocarb 20 and Isocarb 24, respectively .
[0187] 2-EtBu is ethylbutyric acid and 2-EtHe is 2-ethylhexanoic acid, both purchased from Aldrich.
[0188] ε-cap is ε-caprolactone.
[0189] Delta-val is delta-valerolactone
[0190] Mn is the number average molecular weight
[0191] Pd is polydispersity
[0192] Preparation of amine dispersants
Embodiment 7
[0193] Example 7 (BuOc 1, ε-cap 12, δ-val 2) PEI
[0194] Intermediate 1 (44 parts, 24 mM Example 1) and polyethyleneimine (3.3 parts, 0.33 mM, Mn=10,000, SP 200 purchased from Nippon Shukubai) were stirred and heated at 120° C. under nitrogen for 6 hours. After cooling, the product was obtained as a pale yellow solid (43 parts). It is Amine Dispersant 1. The weight ratio of PEI to TPOAC acid was 1:13.
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