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result sql = Microspheres of chitosan/poly(vinylalcohol) incorporating tetrasulphonated copper (II) phthalocyanine: preparation and characterization.
Microspheres of chitosan/poly(vinylalcohol) incorporating tetrasulphonated copper (II) phthalocyanine: preparation and characterization.
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char = h;code = 104
char = ;code = 32
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char = t;code = 116
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char = 6;code = 54
char = ;code = 32
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char = -;code = 45
char = ;code = 32
char = 1;code = 49
char = ;code = 32
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char = e;code = 101
char = g;code = 103
char = r;code = 114
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char = e;code = 101
char = s;code = 115
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char = C;code = 67
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char = ;code = 32
char = T;code = 84
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char = k;code = 107
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char = i;code = 105
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char = a;code = 97
char = t;code = 116
char = a;code = 97
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = a;code = 97
char = l;code = 108
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = c;code = 99
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = p;code = 112
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = s;code = 115
char = o;code = 111
char = r;code = 114
char = p;code = 112
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = c;code = 99
char = r;code = 114
char = o;code = 111
char = s;code = 115
char = p;code = 112
char = h;code = 104
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = d;code = 100
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = c;code = 99
char = e;code = 101
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = a;code = 97
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char = k;code = 107
char = a;code = 97
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = t;code = 116
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = .;code = 46
char = ;code = 32
char = I;code = 73
char = t;code = 116
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = n;code = 110
char = e;code = 101
char = w;code = 119
char = ;code = 32
char = m;code = 109
char = o;code = 111
char = r;code = 114
char = p;code = 112
char = h;code = 104
char = o;code = 111
char = l;code = 108
char = o;code = 111
char = g;code = 103
char = y;code = 121
char = ;code = 32
char = a;code = 97
char = t;code = 116
char = t;code = 116
char = r;code = 114
char = i;code = 105
char = b;code = 98
char = u;code = 117
char = t;code = 116
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = p;code = 112
char = e;code = 101
char = c;code = 99
char = i;code = 105
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = b;code = 98
char = l;code = 108
char = o;code = 111
char = c;code = 99
char = k;code = 107
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = o;code = 111
char = m;code = 109
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = i;code = 105
char = t;code = 116
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = p;code = 112
char = l;code = 108
char = e;code = 101
char = x;code = 120
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = m;code = 109
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ,;code = 44
char = ;code = 32
char = m;code = 109
char = a;code = 97
char = k;code = 107
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = m;code = 109
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = a;code = 97
char = c;code = 99
char = c;code = 99
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = i;code = 105
char = b;code = 98
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = d;code = 100
char = y;code = 121
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char = <;code = 60
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char = r;code = 114
char = /;code = 47
char = >;code = 62
result sql = Tetrasulphonated copper (II) phthalocyanine (TCP), in the salt form, was incorporated into a blend of chitosan (CTS)/poly(vinylalcohol) (PVA) and microspheres were produced using the method of salt coacervation with (approximately 20% w/v) sodium sulphate. Spectroscopic analysis, DSC and TGA were carried out to characterize the form in which the macro-complex was immobilized in the blend. Alkaline treatment of the coagulating medium produces species which are more stable, but with a different morphology observed by scanning electronic microscopy (SEM). Microspheres coagulated in sodium sulphate and also in an alkaline salt medium (0.5 and 2.0 M NaOH) were exposed to a solution of the dye, methylene blue, at an initial concentration of 7 mg/l and maintained in contact for 14 h at 26 +/- 1 degrees C. The kinetic data revealed a decrease in the capacity of sorption of the microspheres that had received the alkaline treatment. It is proposed that the new morphology attributed to these species blocks some sites for complex formation, making them inaccessible to the dye.

Publication: J Microencapsul 1999 Jul-Aug ;16(4)::431-8.
Publication Date: 1999 Jul-Aug
Study Author(s): Stolberg, J;Laranjeira, M C;Sanchez, M N;Klug, M;Fávere, V T;
Institution: Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, Brazil.
Shortcut link to this study:
Tetrasulphonated copper (II) phthalocyanine (TCP), in the salt form, was incorporated into a blend of chitosan (CTS)/poly(vinylalcohol) (PVA) and microspheres were produced using the method of salt coacervation with (approximately 20% w/v) sodium sulphate. Spectroscopic analysis, DSC and TGA were carried out to characterize the form in which the macro-complex was immobilized in the blend. Alkaline treatment of the coagulating medium produces species which are more stable, but with a different morphology observed by scanning electronic microscopy (SEM). Microspheres coagulated in sodium sulphate and also in an alkaline salt medium (0.5 and 2.0 M NaOH) were exposed to a solution of the dye, methylene blue, at an initial concentration of 7 mg/l and maintained in contact for 14 h at 26 +/- 1 degrees C. The kinetic data revealed a decrease in the capacity of sorption of the microspheres that had received the alkaline treatment. It is proposed that the new morphology attributed to these species blocks some sites for complex formation, making them inaccessible to the dye.
PMID: 10420329

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