From the special university capital improvements fund the board shall, subject only to the prior lien thereon of the outstanding bonds heretofore issued pursuant to the provisions of article eleven-a of this chapter, make periodic payments to the state sinking fund commission in an amount sufficient to meet the requirements of any issue of bonds sold under the provisions of this article, as specified in the resolution of the board authorizing the issue thereof and in any trust agreement entered into in connection therewith. The payments so made shall be placed by the commission in a special sinking fund which is hereby pledged to and charged with the payment of the principal of the bonds of such issue and the interest thereon, and to the redemption or repurchase of such bonds, such sinking fund to be a fund for all bonds of such issue without distinction or priority of one over another, except as may be provided in the resolution authorizing such issue of bonds. The moneys in the special sinking fund, less such reserve for payment of principal and interest as may be required by the resolution of the board authorizing the issue and any trust agreement made in connection therewith, may be used for the redemption of any of the outstanding bonds payable from such fund which by their terms are then redeemable, or for the purchase of bonds at the market price, but at not exceeding the price, if any, at which such bonds shall in the same year be redeemable; and all bonds redeemed or purchased shall forthwith be cancelled and shall not again be issued.