Does angle of rotation during takeoff affect the g-force?
The increase in g-force in a banked turn is due to centrifugal force. That's a completely different situation than the g-forces during takeoff.

The forces during take off will be due to acceleration from thrust and, at rotation, an upward acceleration due to lift (and part of the thrust). The pitch angle doesn't have a direct relationship to g-force as the roll angle has in a banked turn. During climb the pitch angle can be as high as 15°, but once you've established a steady climb and a steady airspeed the g-forces are just the 1g of gravity.