strong cation exchanger resin  (Bio-Rad)

Journal: Nanoscale Advances

Article Title: Tuning the phase separation of cellulose nanocrystals with hydrolysis times: influence of effective dimensions †

doi: 10.1039/d5na00069f

Figure Lengend Snippet: Illustration of the formation of chiral nematic structures of CNCs prepared from sulphuric acid hydrolysis.

Article Snippet: Sulphuric acid (H 2 SO 4 ) (70 wt%) for hydrolysis, Dowex Marathon C hydrogen form strong acid cation exchange resin (SAC) (mixture of styrene/divinylbenzene gel) for ion exchange, sodium hydroxide (NaOH), sodium chloride (NaCl), potassium hydrogen phthalate (C 8 H 5 KO 4 ) for conductometric titration, and uranyl acetate (C 4 H 6 O 6 U) (UA) were all purchased from Fisher Scientific (Waltham, MA, US).

Techniques:

Journal: Nanoscale Advances

Article Title: Tuning the phase separation of cellulose nanocrystals with hydrolysis times: influence of effective dimensions †

doi: 10.1039/d5na00069f

Figure Lengend Snippet: Phase separation of CNC suspensions prepared from different hydrolysis times at different weight concentrations. Red circles indicate the observed aggregation appeared at low concentrations.

Article Snippet: Sulphuric acid (H 2 SO 4 ) (70 wt%) for hydrolysis, Dowex Marathon C hydrogen form strong acid cation exchange resin (SAC) (mixture of styrene/divinylbenzene gel) for ion exchange, sodium hydroxide (NaOH), sodium chloride (NaCl), potassium hydrogen phthalate (C 8 H 5 KO 4 ) for conductometric titration, and uranyl acetate (C 4 H 6 O 6 U) (UA) were all purchased from Fisher Scientific (Waltham, MA, US).

Techniques:

Journal: Nanoscale Advances

Article Title: Tuning the phase separation of cellulose nanocrystals with hydrolysis times: influence of effective dimensions †

doi: 10.1039/d5na00069f

Figure Lengend Snippet: (a) Surface charge density of sulphate half-ester groups (black diamond) and absolute zeta potential values (white square) of CNCs prepared at different hydrolysis times and (b) Debye length in nm (black diamond) and critical concentration (wt%, white square) at different sulphur contents of CNCs.

Article Snippet: Sulphuric acid (H 2 SO 4 ) (70 wt%) for hydrolysis, Dowex Marathon C hydrogen form strong acid cation exchange resin (SAC) (mixture of styrene/divinylbenzene gel) for ion exchange, sodium hydroxide (NaOH), sodium chloride (NaCl), potassium hydrogen phthalate (C 8 H 5 KO 4 ) for conductometric titration, and uranyl acetate (C 4 H 6 O 6 U) (UA) were all purchased from Fisher Scientific (Waltham, MA, US).

Techniques: Zeta Potential Analyzer, Concentration Assay

Journal: Nanoscale Advances

Article Title: Tuning the phase separation of cellulose nanocrystals with hydrolysis times: influence of effective dimensions †

doi: 10.1039/d5na00069f

Figure Lengend Snippet: Dimensions and surface charge of CNCs prepared for 25, 45, 60 and 90 min by sulphuric acid hydrolysis. l i , d i , a i are the length, diameter and aspect ratio of individual CNC, respectively, while l t , d t correspond to the length and diameter of total CNCs, respectively. d AE , a AE are the area-equivalent diameter and aspect ratio of total CNCs, respectively. d e is the calculated Debye length and w 0 is the first critical weight concentration obtained from the phase separation diagram

Article Snippet: Sulphuric acid (H 2 SO 4 ) (70 wt%) for hydrolysis, Dowex Marathon C hydrogen form strong acid cation exchange resin (SAC) (mixture of styrene/divinylbenzene gel) for ion exchange, sodium hydroxide (NaOH), sodium chloride (NaCl), potassium hydrogen phthalate (C 8 H 5 KO 4 ) for conductometric titration, and uranyl acetate (C 4 H 6 O 6 U) (UA) were all purchased from Fisher Scientific (Waltham, MA, US).

Techniques: Concentration Assay