Sample

CI^a (%)

CI^b (%)^b

PEO

86

83

95/5 w/w PEO/SB

79

73

95/5 w/w PEO/SB500

88

84

95/5 w/w PEO/Cellulose

91

85

95/5 w/w PEO/nanocellulose

92

80