I would like to make a donation-partage to my children with my apartment. Is it possible?

No. The operation would consist of giving each an undivided share of the property. However, the situation of joint ownership is incompatible with the donation-partage which requires that the donor distributes his property between the beneficiaries (art. 1075 C. civ. and Cass. Civ. 1e, 20 Nov. 2013, n°12-25.681).