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Polymeric membrane distillation (MD) can be used as a desalination application. It is a promising technology owing to mechanical stability, flexibility, and chemical resistance. However, polymeric-based MD needs to improve further due to low flux permeation in rejecting salt from seawater feed. PVDF hollow fiber membrane consisted of the hydrophilic (LSMM) and hydrophobic (BSMM) surface modifying macromolecules was fabricated. LSMM structure is end-capped by OH bonds which show hydrophilic nature while BSMM consists of a hydrophobic CF bond. By determining the appropriate ratio of LSMM and BSSM loading in the PVDF substrate, it could enhance the MD performance. LSMM could improve the hydrophilic nature at the lumen of the PVDF hollow fiber membrane which can promote the water flux permeation. On the other hand, the positioning of BSMM at the shell layer of the PVDF hollow fiber …