Methods and apparatus relating to techniques for controlling resource utilization with adaptive routing are described. According to the invention, the chemical structure of said monomer comprises at least one unit of formula wherein R1 comprises an alkenyl grouping and R2 comprises a grouping for protecting one of the nitrogen atoms of the heterocycle. The contact surface comprises a metal coating configured for increasing sealing. If two or more context pages are identical, then their memory mappings are changed to point to a single, shared copy of the page in the hardware memory, thereby freeing the memory space taken up by the redundant copies.