Preparation and characterization of PVDF/silica hybrid membranes containing sulfonic acid groups

2004 ◽  
Vol 93 (1) ◽  
pp. 209-218 ◽  
Author(s):  
Dae Sik Kim ◽  
Ho Bum Park ◽  
Young Moo Lee ◽  
Young Hoon Park ◽  
Ji-Won Rhim
Keyword(s):  
Sulfonic Acid ◽  
Hybrid Membranes ◽  
Sulfonic Acid Groups ◽  
Silica Hybrid

scholarly journals Preparation and Characterization of Self-Dispersing Phthalocyanine Blue 15:4 Pigment for Dyeing of Wool Textiles

Coatings ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 741
Author(s):  
Lun Nie ◽  
Guangtao Chang ◽  
Ruoxin Li
Keyword(s):  
Sulfonic Acid ◽  
Coupling Reaction ◽  
Acid Dyes ◽  
Light Fastness ◽  
Grade 5 ◽  
Weather Resistance ◽  
Sulfonic Acid Groups ◽  
Positively Charged ◽  
Better Than

A self-dispersing pigment was produced by a diazonium coupling reaction; the pigment reacted with aromatic diazonium salts which were generated by the reaction of p-aminobenzene sulfonic acid and sodium nitrite. The surface of the pigment particles was negatively charged due to sulfonic acid groups on the pigment surface. The pigment particle size and zeta potential were, respectively, 134.5 nm and −45.4 mV at neutral pH. The wool surface was positively charged by adjusting the pH; then the anionic self-dispersing pigment dyed the cationic wool. The results show that self-dispersing pigment can adhere well without a binder, and that the K/S value is closely related to pH, dyeing time, and the amount of pigment. The color fastness of the wool was good and the light fastness of the wool was grade 5, which is better than acid dyes. Self-dispersing pigments are potential candidates for dyeing high-weather-resistance textiles.

Synthesis and characterization of proton-conducting copolyimides bearing pendant sulfonic acid groups

2005 ◽  
Vol 43 (8) ◽  
pp. 1545-1553 ◽  
Author(s):  
Yan Yin ◽  
Otoo Yamada ◽  
Yoshiki Suto ◽  
Takashi Mishima ◽  
Kazuhiro Tanaka ◽  
...  
Keyword(s):  
Sulfonic Acid ◽  
Synthesis And Characterization ◽  
Proton Conducting ◽  
Sulfonic Acid Groups

Preparation and characterization of transparent polyarylethers-silica hybrid membranes with covalently connected phases

Polymer ◽  
2012 ◽  
Vol 53 (22) ◽  
pp. 5002-5009 ◽  
Author(s):  
Wei Wei ◽  
Haibo Zhang ◽  
Shaowei Guan ◽  
Zhenhua Jiang ◽  
Xigui Yue
Keyword(s):  
Hybrid Membranes ◽  
Silica Hybrid

Synthesis and Characterization of Uniform Alumina−Mesoporous Silica Hybrid Membranes

Langmuir ◽  
2006 ◽  
Vol 22 (4) ◽  
pp. 1839-1845 ◽  
Author(s):  
Sukjoon Yoo ◽  
David M. Ford ◽  
Daniel F. Shantz
Keyword(s):  
Mesoporous Silica ◽  
Synthesis And Characterization ◽  
Hybrid Membranes ◽  
Silica Hybrid
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