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Abstract
A core-shell latex based on methyl methacrylate, n-butyl acrylate, and methacrylic acid was synthesized, and the core of which was modified by hydroxyl-containing poly(dimethyl siloxane). Glycidyl methacrylate was empolyed as one of monomers in the shell and served as a cross-linker when the core-shell latex was used as an binder of the pigment printing. The chemical structure of the copolymer was characterized by infrared spectrum. The stucture and the particle size of the core-shell particles were characterized by transmission electron microscopy, nanoscale granularity analysis, and differential scanning calorimetry. The latex was used as a binder in pigment printing of fabrics.
Acknowledgments
Support from the National Natural Science Foundation of China (Grant No. 20704018) and the Fundamental Research Funds for the Central Universities (Grant Nos. JUSRP10902 and JUSRP10904) are gratefully acknowledged.
Notes
a Weight percent of all the weight of the monomers.
b SDBS/TW-80 = 1/3, by weight.
c Weight percent of the weight of monomers in the core.
d Weight proportion of core and shell = 3/1, 2/1, 1/1, 4/5, where, the monomers ratio in the core: BA/MMA/MAA = 75/20/5, in the shell: MMA/BA/GMA = 46/50/4.
e The water was added as the totoal weight is 100.
Note: The pH of the pigment printing pastes was adjusted to 7–8.
*Percentage of the core monomers; with the fixed core (BA/MMA/MAA = 75/20/5, by weight) – shell (MMA/BA/GMA = 46/50/4, by weight) ratio as 2/1, the PDMS-OH modified polyacrylate core-shell particles were prepared under the optimum polymerization conditions.
*The weight ratio of core monomers to shell ones; with the fixed dosage of PDMS-OH as 6 wt% of the core monomers, the PDMS-OH modified polyacrylate core-shell particles were prepared under the optimum polymerization conditions.
