Disclosed are block copolymers and end-functionalized polymers containing in their backbones at least one fluoro alkyl acrylate mer unit comprising \u2014C6F13, \u2014C4F9, or \u2014C3F7. According to various embodiments, demonstration page information may be stored in the semi-volatile NAND flash memory, which may be reused and incorporated back into the memory pool after the demonstration page information is no longer needed. Also included is an actuator, wherein the actuator is operable to overbear the first biasing mechanism to place the compression chuck in an engaged condition with the rope in response to a rope break, braking movement of the rope.