Jeffamine m 2070

Example 1

Synthesis.

10 grams PP-g-MA (Aldrich) (average Mw approximately 9,100 by GPC, average Mn approximately 3,900 by GPC, maleic anhydride 8-10 wt %) and 10 grams Jeffamine M2070 (Huntsman), were suspended in 200 ml Xylene (Fisher), and 2 g Tripropylamine (Sigma-Aldrich), was added afterward. The suspension was heated up to 125° C. for 48 hours. No initiator was used because it is a N-imidation reaction.

Purification.

Graft copolymer solution in Xylene was precipitated in acetone (Fisher), rinsed with acetone (Fisher) and solvent extraction with acetone (Fisher) for 24 hours. Tripropylamine is removed during this step. Purified material was dried in the vacuum oven overnight.

Yield.

PPMA-g-Jeffamine (e.g., PPMA-g-PEO-PPO) was ˜85% after purification based on the starting amount of PP-g-MA.

Example 5

7.7 g of Hexahydrophthalic acid anhydride (HHPA) was mixed with 100 g of a polyetheramine available from HUNTSMAN, under the name Jeffamine® M-2070 to react under 120° C. with 0.02 g of triphenylphosphine (TPP) as catalyst. 18.8 g of a Bisphenol-A epoxy available from CCP, under the name BE188 and 0.03 g of TPP were further added into the reaction to react under 120° C. The final product has the above defined structure of S5 with an acid value of 0.82.

Example 4

9.6 g of Trimellitic anhydride (TMA) was mixed with 167.5 g of PEG3350 to react under 150° C. with 0.035 g of triphenylphosphine (TPP) as catalyst. 100 g of a polyetheramine available from HUNTSMAN, under the name Jeffamine® M-2070 was further added into the reaction to react under 120° C. with 0.055 g of TPP. Finally, 18.8 g of a Bisphenol-A epoxy available from CCP, under the name BE188 and 0.06 g of TPP were further added into the reaction to react under 150° C. The final product has the above defined structure of S4 with an acid value of 0.55.