Photonic crystals in biology

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Poster Session, Tuesday, June 15
Theme A1 - B702
Synthesis, Characterization of Nanodots Embedded into PP-g-PEG Amphiphilic Graft Copolymer
1*
2
1
Özlem A. KalaycıP
P, Baki HazerP P, Turgay AtalayP
1
PDepartment of Physics, Zonguldak Karaelmas University, Zonguldak 67100, Turkey
PDepartment of Chemistry, Zonguldak Karaelmas University, Zonguldak 67100, Turkey
2
Abstract—The synthesis, CdS and Cd Acetate nanoparticles salts embedded in novel amphiphilic comb-type graft
copolymers having good film-forming properties have been described. Amphiphilic comb-type graft copolymers were
synthesized by the reaction of chlorinated polypropylene (PP) (Mw = 140,000 Da) with polyethylene glycol (PEG) (Mn =
2,000 Da) at different molar ratios. Cd nanoparticles embedded graft copolymers were prepared by reducing solutions of the
salts of CdS and Cd Acetate.
The interest in the synthesis and characterization of
nanoparticles embedded amphiphilic block and graft
copolymers has increased recently due to their possible
applications in the fields of biology and material sciences.
Nanoparticles show properties that are often different from
those of their corresponding bulk materials. Size provides
important control over many of the physical and chemical
properties of nanoscale materials including luminescence,
conductivity, and catalytic activity allowing application of
these species in optical systems, catalysis, and biomedical
technology [1].
In this study, a series of various polypropylene- g-
polyethyleneglycol (PP-g-PEG2000) graft copolymers was
prepared by using chlorined- polypropylene and
polyethyleneglycol 2000. Some inorganic salts aqueous
solutions were mixed into tetrahydrofurane solution of
amphiphilic copolymer to obtain inorganic nanoparticles
embedded into polymer composites. Scanning Electron
Microscopy were used to characterize polymer composites
micrograph . [2,3].
Figure 2. SEM micrograph of Cd Acetate nanoparticle salts
embedded PP-g- PEG.
The average particle diameter of nanoparticles were found to
be 10 and 170 nm, from the high resolution Scanning electron
microscopy (SEM). SEM micrographs of the cadmium
nanoparticles embedded graft copolymer samples are shown in
Fig. 1., Fig. 2., respectively.
This study was supported by Zonguldak Karaelmas
University Scientific Research Projects (grant# 2008-70-01-
01, grant# 2008-13-02-02, grant# 2008-13-03-01).
Figure 1. SEM micrograph of CdS nanoparticle salts embedded PPg-PEG.
*Corresponding author: ozlem_altunordu@yahoo.com.tr
[1] Alivisatos AP (1996) Perspectives on the physical chemistry of
semiconductor nanocrystals. J Phys Chem 100:13226–13239
[2] El-Sayed MA (2001) Some interesting properties of metals
confined in time and nanometer space of different shapes. Acc Chem
Res 34:257–264
[3] Kalaycı, Ö.A., Cömert B.F., Hazer, B., Atalay, T., Cavicchi, A.
K., Çakmak, M, 2009. Synthesis, characterization, and antibacterial
activity of metal nanoparticles embedded into amphiphilic comb-type
graft copolymers, Polym. Bull.,DOI:10.1007/s00289-009-0196-y
6th Nanoscience and Nanotechnology Conference, zmir, 2010 296