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Natural Water-Soluble Polymers

Water-soluble natural polymers are the groups of polymer synthesized naturally mostly by different plants and lower forms of organism. They occupy a very important portion of the total pharmaceutical application of polymers. Some of the most frequently used polymers under this group are presented with a short description. [Pg.48]

Another chromatographic method, which is related to HPLC, is Size Exclusion Chromatography.16 In this technique, separation is based on molecular size. The analytes do not interact with the column material, but are separated on basis of the amount of pores into which they may penetrate. SEC is used for the separation and characterization of synthetic and natural water-soluble polymers. Organic or silica-... [Pg.158]

In this experiment, a natural, water-soluble polymer is precipitated into water. Actually, this processes commonly carried out in the kitchen. "When the nonsolvent is a certain aqueous solution, the final concoction is called egg-drop soup. A second method for precipitating egg white involves the use of an organic solvent. [Pg.238]

Polymers are mainly classified into two categories, natural and synthetic polymers (Table 30.1). Natural (water soluble) polymers are mostly obtained from natural sources. Naturally derived polymers with special focus on polysaccharides and proteins have become attractive in the biological applications of controlled release systems. Polysaccharides are a class of biopolymers constituted by either one or two alternating monosaccharides, which differ in their monosaccharide units in the length of a chain, in the types of the linking units, and in the degree of branching. ... [Pg.587]

An alternative method of obtaining water solubility, without salt or ion formation, is to incorporate short lengths of naturally water-soluble polymer into the main polymer structure. Often polyethene glycol is used. This is a polyether (Chapter 15) of molecular weight about 1000, which is made from ethylene oxide and ethylene glycol. Between 5 and 20% by... [Pg.119]

Xanthan gum—the natural water-soluble polymer for cosmetie and personal care products. In-Cosmetics Preprints, Vol II. Verlag fur Chem. Industrie H. Ziolkowsky GmbH, Augsburg 1993 37-40. [Pg.396]

The properties of a selection of natural water-soluble polymers are summarized in Table 11.1. [Pg.236]

TABLE 11.1 Summary of the Properties of Natural Water-Soluble Polymers ... [Pg.238]

See other pages where Natural Water-Soluble Polymers is mentioned: [Pg.1312]    [Pg.671]    [Pg.588]    [Pg.48]    [Pg.49]    [Pg.51]    [Pg.53]    [Pg.55]    [Pg.57]    [Pg.109]    [Pg.285]    [Pg.24]    [Pg.90]    [Pg.32]    [Pg.236]    [Pg.238]    [Pg.240]    [Pg.242]    [Pg.244]    [Pg.246]    [Pg.248]    [Pg.250]    [Pg.252]    [Pg.254]    [Pg.269]    [Pg.282]   


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Natural Water-Soluble Polymers 1 Polysaccharides

Natural polymers

Polymers solubility

Solubility nature

Soluble polymers

Water natural

Water polymers

Water-soluble polyme

Water-soluble polymers

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