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Organic-Inorganic Hybrid Mesoporous Polymers Fabricated by Using (CTA)2S2O8 as Self-Decomposed Soft Templates.
MedLine Citation:
PMID:  23025460     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Organic-inorganic hybrid mesoporous polymers were successfully synthesized by using a template-directed free radical polymerization technique in aqueous solution at 0-5 oC with oxidative complexes as self-decomposed soft templates. The oxidative complexes ((CTA)2S2O8), which were formed between anionic oxidant (S2O82-) and cationic surfactant (cetyl trimethylammonium bromide, CTAB) at 0-5 oC, can be automatically decomposed due to the reduction of S2O82-. No additional treatment was needed to remove the templates. The reactive functional monomer, 3-(trimethoxysilyl)propylmethacrylate (TMSPMA), was used as main monomer. Styrene was used as the co-monomer. With simultaneous free radical copolymerization of TMSPMA and styrene, condensation of methoxysilyl groups and the self-decomposition of (CTA)2S2O8, organic-inorganic hybrid mesoporous polymers were successfully obtained. The mesoporous structures and morphologies of the resultant hybrid mesoporous polymers were found to be strongly dependent on the feed amounts of TMSPMA and styrene. In the absence of styrene, the hybrid polymer PTMSPMA exhibited mesh-like structures with bicontinuous mesopores and high surface area (335 m2/g). With the incorporation of styrene, mesoporous nanoparticles were obtained. The surface areas of the mesoporous nanoparticles decreased with the increase of styrene contents. The adsorption capabilities of such mesoporous polymers for organic dye (congo red) and protein (bovine serum albumin) were also studied.
Authors:
Tianyou Chen; Bin-Yang Du; Zhi-Qiang Fan
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-2
Journal Detail:
Title:  Langmuir : the ACS journal of surfaces and colloids     Volume:  -     ISSN:  1520-5827     ISO Abbreviation:  Langmuir     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9882736     Medline TA:  Langmuir     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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