The inherent pore forming capability can be modulated by inclusion of short chain cellulose and native celluloses in the MC solution
(Cellulose degree of polymerization of approximately 250 and 900, respectively)
During the precipitation process ,
The short chain celluloses tend to create smallar,
Fewer and tortuous pores as the shorter regenerated cellulose aggregates are able to from more or dered and hence stronger hydrogen bonded inter-and intra-polymer domain that cannot be broken by the intruding water