a) A neat polymer and its fibre reinforced composite undergo isothermal crystallisation separately under three different temperatures 260 C, 280 C and 300 C. The relative volume crystallinity generated during the isothermal crystallisation is plotted against time as shown in Figure 2a. Compare and explain the isothermal crystallisation behaviours of i) the neat polymers at three different temperatures and ii) the same polymers reinforced with fibre at each temperature. Neat unreinforced polymer Relative crystallinity vs. time b) Relative volume crystallinity 0.8 0.6 0.4 0.2 Relative volume crystallinity 0.8 0.6 0.4 22 5 10 260C