Seraphin“Are these two expressions interchangeable ?”
No. You need one of these:
I wonder if I can borrow some money from you.
I wonder if it would be possible to borrow some money from you.
I wonder if it would be possible for me to borrow some money from you.
I wonder if there's any possibility that I might borrow some money from you.
I wonder if there's any possibility that I could borrow some money from you.
I wonder if there's any possibility of my borrowing some money from you.
Note: possible to ...; possible for ... to ...; possibility that ... might/could ...; possibility of ... -ing ...
CJ