Abstract: In one aspect, methods of depolymerization are described herein comprising providing a synthetic polymer including a hydroxylated aliphatic backbone or hydroxylated backbone segments, and homolytically activing O—H bonds of the hydroxyl groups. Homolytic activation induces the formation of alkoxy radical intermediates followed by C—C bond ?-scission events breaking the polymer backbone into depolymerization products. In some embodiments, depolymerization products comprise alkyl radical intermediates reduced by hydrogen atom transfer. Moreover, in some embodiments, the depolymerization products are further reacted into difunctionalized products or comprise functionalities derived from the polymer structure. The difunctionalized products can subsequently be employed in polymerization processes for the production of additional synthetic polymers.

Abstract: Apparatus for positioning and maneuvering a sludge, or manure, distributing hose used in fertilizing a field includes a first frame adapted for coupling to a three-point tractor hitch and a second frame pivotally coupled to an aft portion of the first frame. Attached to and disposed aft of the second frame is a horizontally oriented, rotatable wheel assembly adapted to engage, lift and position the hose and to provide for changes in the direction of the hose as it is pulled through a field during fertilizing. The wheel assembly is horizontally and vertically pivotable about the first frame for respectively facilitating maneuvering of the hose in a field and for raising the wheel assembly for transport. A locking mechanism is provided for engaging and preventing rotation of the wheel assembly when desired. Hydraulic cylinders connected to the tractor's hydraulic system allow for changing the configuration of the apparatus.

Abstract: Apparatus for positioning and maneuvering a sludge, or manure, distributing hose used in fertilizing a field includes a first frame adapted for coupling to a three-point tractor hitch and a second frame pivotally coupled to an aft portion of the first frame. Attached to and disposed aft of the second frame is a horizontally oriented, rotatable wheel assembly adapted to engage, lift and position the hose and to provide for changes in the direction of the hose as it is pulled through a field during fertilizing. The wheel assembly is horizontally and vertically pivotable about the first frame for respectively facilitating maneuvering of the hose in a field and for raising the wheel assembly for transport. A locking mechanism is provided for engaging and preventing rotation of the wheel assembly when desired. Hydraulic cylinders connected to the tractor's hydraulic system allow for changing the configuration of the apparatus.