A space-saving in-flight trash compactor, comprising a trash chute, a compactor mechanism, and a storage chamber that includes an interface for the trash chute. The leading edges of the stationary vanes are shaped to direct any stringy material into the radial gaps between the free ends of the stationary vanes and the rotating nose cone to be shredded and thus prevent fouling and clogging of the pump assembly when such stringy material is generated during the polymerization process. A positive ion MSMS scan is then performed. A region of the sheet material in contact with the ridge is compressed so that the density of the region reaches or exceeds the breaking density of the sheet. For example, such conjugates include a structure according to Formula I:.