|
|
|
|
| LEADER |
01000naa a22002652 4500 |
| 001 |
NLM174276036 |
| 003 |
DE-627 |
| 005 |
20231223135552.0 |
| 007 |
tu |
| 008 |
231223s2007 xx ||||| 00| ||eng c |
| 028 |
5 |
2 |
|a pubmed24n0581.xml
|
| 035 |
|
|
|a (DE-627)NLM174276036
|
| 035 |
|
|
|a (NLM)17924674
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Dupin, Damien
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Efficient synthesis of poly(2-vinylpyridine)-silica colloidal nanocomposite particles using a cationic azo initiator
|
| 264 |
|
1 |
|c 2007
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
|
| 338 |
|
|
|a Band
|b nc
|2 rdacarrier
|
| 500 |
|
|
|a Date Completed 15.01.2008
|
| 500 |
|
|
|a Date Revised 30.10.2007
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status PubMed-not-MEDLINE
|
| 520 |
|
|
|a Colloidal poly(2-vinylpyridine)-silica nanocomposite particles can be efficiently prepared by emulsion polymerization at 60 degrees C using a commercial 20 nm aqueous silica sol as the sole stabilizing agent. Unlike previously reported colloidal nanocomposite syntheses, transmission electron microscopy studies indicate very high silica aggregation efficiencies (88-99%). The key to success is simply the selection of a suitable cationic azo initiator. In contrast, the use of an anionic persulfate initiator leads to substantial contamination of the nanocomposite particles with excess silica sol. The cationic azo initiator is electrostatically adsorbed onto the anionic silica sol at submonolayer coverage, which suggests that surface polymerization may be important for successful nanocomposite formation. Moreover, the 2-vinylpyridine can be partially replaced with either styrene or methacrylic comonomers to produce a range of copolymer-silica nanocomposite particles. The poly(2-vinylpyridine)-silica nanocomposite particles have a well-defined core-shell morphology, with poly(2-vinylpyridine) cores and silica shells; mean diameters typically vary from 180 to 220 nm, and mean silica contents range from 27 to 35% by mass
|
| 650 |
|
4 |
|a Journal Article
|
| 700 |
1 |
|
|a Schmid, Andreas
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Balmer, Jennifer A
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Armes, Steven P
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 23(2007), 23 vom: 06. Nov., Seite 11812-8
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
|
| 773 |
1 |
8 |
|g volume:23
|g year:2007
|g number:23
|g day:06
|g month:11
|g pages:11812-8
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_22
|
| 912 |
|
|
|a GBV_ILN_350
|
| 912 |
|
|
|a GBV_ILN_721
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 23
|j 2007
|e 23
|b 06
|c 11
|h 11812-8
|