The instant invention generally provides a process for extruding a melt of a mixture comprising a molecularly self-assembling (MSA) material and at least one first rheological additive to give a shaped MSA material, a shaped MSA material produced by the process, and an article comprising the shaped MSA material. The instant invention also generally provides a composition comprising a MSA material and at least one second rheological additive, a process of electrospinning the composition, and a fiber prepared by the electrospinning process.