We synthesized an aromatic-terminated polysulfide oligomer as an additive (5 wt %) for lp55-f in an attempt to enhance the molecular mobility, thereby increasing the disulfide exchange probability in the networks.

what does it mean " as an additive (5 wt%) for lp55-f." how many grams were used here? need with examples to clarify. if lp 55 is 200 g, how many grams in aromatic-terminated polysulfide oligomer.