To quantitatively describe the change of crystal structure of PSA fibers after graft, the contribution from amorphous polyacrylic acid
was subtracted, and the crystallinity of AA-grafted PSA fibers was calculated based on the peak area of crystal peaks and amorphous phase of PSA fibers, as shown in Fig.
derivatives were prepared successfully according to Scheme-1 and characterized with different techniques.
S Lenshin, "A study of the role of polyacrylic acid
in the surface modification of porous silicon with the aim of enhancing and stabilizing silicon photoluminescence," Journal of Surface Investigation, vol.
Materials and manufacturer Composition Lot number Hydro C (DENTSPLY Caulk, Catalyst: calcium 064969H Milford, DE, USA) hydroxide, zinc oxide, ethyl toluene sulfonamide, zinc stearate, and mineral dyes Base: ester glycol salicylate, barium sulfate, titanium dioxide, silica, and mineral dyes Kerr Life (Kerr, Catalyst: bisacrylic and 4-1325 Karlsruhe, Germany) trisacrylic resin, methyl salicylate Base: calcium oxide and zinc oxide Riva conditioner (SDI, 25-30% polyacrylic acid
, 140355 Bayswater, Australia) balancing ingredients Super etch (SDI, 37% phosphoric acid, 130694Z Bayswater, Australia) balancing ingredients Table 2: Means (standard deviation) of water sorption ([micro]g/ [mm.sup.3]) according to the type of material and treatment.
Surface morphology and architecture are shown in TEM and SEM images in Figure 3, which reveal that magnetic nanoparticles functionalized with polyacrylic acid
(P-MNPs) are spherical before (Figure 3(a)) and after loading with Cu (Figure 3(d)).
The weight loss was observed because the inhibitor 2-MBT undergoes oxidative degradation which starts to degrade above 200[degrees]C; in addition, polyacrylic acid
and poly (pyrrole) start to degrade above 300[degrees]C.
Yarwood, "Adsorption of polyamine, polyacrylic acid
and polyethylene glycol on montmorillonite: an in situ study using ATR-FTIR," Vibrational Spectroscopy, vol.
Mirrahimi, "Efficient separation of heavy metal cations by anchoring polyacrylic acid
on superparamagnetic magnetite nanoparticles through surface modification," Chemical Engineering Journal, vol.
The results of the XRD studies reinforce the findings of the FTIR which suggested a probable interaction between the MWCNT and the polyacrylic acid
Again, the use of the polyacrylic acid
surface treatment solution (Riva Conditioner) is recommended (10 to 20% for 15 to 20 seconds, followed by rinsing and moderate drying)
Vive Crop makes them out of chitosans, found naturally in the shells of shrimp and other crustaceans, and polyacrylic acid
, the super-absorbent material found in baby diapers.
Drzymala and Fuerstenau  investigated the activation and deactivation of quartz with polyacrylic acid
flocculant in the hematite-quartz synthetic slurry containing ferric ions and found that SHMP is not a selective deactivating agent compared with EDTA and potassium fluoride (KF).