A series of 85/15 AN/MA copolymers (acrylonitrile-methyl acrylate copolymers with feed ratio of 85/15 mol%) were synthesized by aqueous precipitation polymerization at 20, 30, and $40^{circ}C$, and the copolymers were used to produce a series of fibers by melt spinning. The copolymers and fibers were characterized by element analysis (EA), nuclear magnetic resonance ($^1H$ NMR and $^{13}C$ NMR), capillary rheometry, differential scanning calorimetry (DSC), X-ray diffraction (XRD), and scanning electronic microscopy (SEM). The average length of the contiguous AN units synthesized at $30^{circ}C$ had a maximum value of 10.53. Aqueous polymerization at $30^{circ}C$ resulted the lowest glass transition temperature ($T_g$) of $87.1^{circ}C$, the lowest melting point ($T_m$) of $154.5^{circ}C$, and the highest decomposition temperature ($T_d$) of $325.0^{circ}C$. 85/15 AN/MA prepared at 20 and $30^{circ}C$ exhibited a better fluidity at $210^{circ}C$. The ideal reaction temperatures for melt processing of the AN/MA copolymers were found to be 20 and $30^{circ}C$.