Hence, when the plant starts losing water, the monomeric form of Si transforms into the polymeric form, i.e., Si starts forming heavier chains of polysilicic acid
. After polymerized, there is a decrease in the flexibility of stomatal walls and the trend is to remain closed, reducing transpiration and water loss (Luz et al., 2006) and causing the increase in water use efficiency.
Tang, "Study on the hydrolysis-polymerization process of aluminum and the interaction between hydrolyzed aluminum species and polysilicic acid in flocculant polyaluminum silicate chloride (PASC)," ACTA Scientiae Circumstantiae, vol.
Wang, "Electron microscopic observation on sol and gel of polysilicic acid," Environmental Chemistry, vol.
Yokoyama, "Effect of polysilicic acid
on the precipitation of calcium carbonate," Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol.
Most of these minerals are largely insoluble, though low levels of mono- and polysilicic acid
invariably found dissolved in the soil solution.
Since aqueous sodium metasilicate solutions normally contain water, which is not compatible with thermoplastic polyurethane (TPU), a modified approach is adopted to extract polysilicic acid derived from aqueous metasilicate solution.
The polysilicic acid particles sizes in the THF solution were investigated using dynamic light scattering measurement.
Fortunately, the copolymer readily coats polysilicic acids
and this forms a particulate material that adheres to hair and allows recovery of style even when it has been altered by wind or water.