(a) Except as otherwise provided in (b) of this section and AS 45.29.406 - 45.29.409, whether a debtor's rights in collateral may be voluntarily or involuntarily transferred is governed by law other than this chapter.
(b) An agreement between the debtor and secured party that prohibits a transfer of the debtor's rights in collateral or makes the transfer a default does not prevent the transfer from taking effect.