Acrylic acid polyvinyl alcohol

An interesting feature of current commercial products is that the polymer vehicles available for formulation have been limited to nonionic and anionic materials. The delivery vehicles available included off-the-shelf polymers such as carboxymethylcellulose, soluble starch, hydroxyethyl-cellulose, polyvinyl alcohol, poly(acrylic acid), and polyvinylpyrrolidone, or mixtures thereof. The choice of available polymeric delivery system primarily depends on component compatibility, aesthetics, and efficacy. However, by reliance upon available (off-the-shelf) systems, limitations on bioadhesion, drug bioavailability, contraceptive efficacy, and end-use characteristics has been limited. [Pg.217]

Other hydrogels are prepared from poly(a-hydroxylic) acids, e.g., lactic acid, polyacrylic acid, acrylamides and acrylated polyvinyl alcohol, and polyethylene glycol. [Pg.209]

A hydrogel placed in an excess of water will absorb the liquid until it reaches a maximum. This ability is typically reported as the percent water in a fully swollen gel. The hydrophilicity of the polymer and the degree of cross-linking determine the degree to which the gel will absorb. Some hydrogels contain as much as 99% water. An acrylic acid gel will have a higher equilibrium moisture than a polyvinyl alcohol gel. This characteristic is not unlike the hydrodynamic volume factor described above. [Pg.178]

ABA ABS ABS-PC ABS-PVC ACM ACS AES AMMA AN APET APP ASA BR BS CA CAB CAP CN CP CPE CPET CPP CPVC CR CTA DAM DAP DMT ECTFE EEA EMA EMAA EMAC EMPP EnBA EP EPM ESI EVA(C) EVOH FEP HDI HDPE HIPS HMDI IPI LDPE LLDPE MBS Acrylonitrile-butadiene-acrylate Acrylonitrile-butadiene-styrene copolymer Acrylonitrile-butadiene-styrene-polycarbonate alloy Acrylonitrile-butadiene-styrene-poly(vinyl chloride) alloy Acrylic acid ester rubber Acrylonitrile-chlorinated pe-styrene Acrylonitrile-ethylene-propylene-styrene Acrylonitrile-methyl methacrylate Acrylonitrile Amorphous polyethylene terephthalate Atactic polypropylene Acrylic-styrene-acrylonitrile Butadiene rubber Butadiene styrene rubber Cellulose acetate Cellulose acetate-butyrate Cellulose acetate-propionate Cellulose nitrate Cellulose propionate Chlorinated polyethylene Crystalline polyethylene terephthalate Cast polypropylene Chlorinated polyvinyl chloride Chloroprene rubber Cellulose triacetate Diallyl maleate Diallyl phthalate Terephthalic acid, dimethyl ester Ethylene-chlorotrifluoroethylene copolymer Ethylene-ethyl acrylate Ethylene-methyl acrylate Ethylene methacrylic acid Ethylene-methyl acrylate copolymer Elastomer modified polypropylene Ethylene normal butyl acrylate Epoxy resin, also ethylene-propylene Ethylene-propylene rubber Ethylene-styrene copolymers Polyethylene-vinyl acetate Polyethylene-vinyl alcohol copolymers Fluorinated ethylene-propylene copolymers Hexamethylene diisocyanate High-density polyethylene High-impact polystyrene Diisocyanato dicyclohexylmethane Isophorone diisocyanate Low-density polyethylene Linear low-density polyethylene Methacrylate-butadiene-styrene... [Pg.958]

Superabsorbent polymers are now commonly made from the polymerization of acrylic acid blended with sodium hydroxide in the presence of an initiator to form a polyacrylic acid, sodium salt (sometimes referred to as cross-linked sodium polyacrylate). Some of the polymers include polyacrylamide copolymer, ethylene maleic anhydride copolymer, cross-linked carboxy-methyl-cellulose, polyvinyl alcohol copolymers, cross-linked polyethylene oxide, and starch grafted copolymer of polyacrylonitrile to name a few. The latter is one of the oldest SAP forms created. [Pg.32]

The SDA gave the technical expertise to several USA companies for further development of the basic technology. A wide range of grating combinations was attempted including work with acrylic acid, acrylamide, and polyvinyl alcohol (PVA). [Pg.33]

Hydroxypropyl cellulose (HPC) Hydroxyethylcellulose (HEC) Methylcellulose (MC) Polvinyl alcohol (PVA) Polyacrylic acid (PAA) Poly (meth) acrylic acid ester (PMAA) Polyvinyl pyrrolidone (PVP) Polyethylene glycols (PEG) White wax... [Pg.154]

While PEG-based supports are widely used for liquid-phase combinatorial chemistry, other non-PEG-based soluble polymers have also been reported for combinatorial applications. A recent review (276) contains an exhaustive list of homo- and copolym-eric soluble supports used in peptide, oligonucleotide, and oligosaccharide synthesis, including combinatorial chemistry. Two of these supports have also been used for small organic molecule synthesis. Homopolymeric polyvinyl alcohol was used in conjunction with PEG for a protection/derivatization strategy in solution (284), and the copolymer between isopropylacrylamide and acrylic acid was used in the catalytic hydrogenation of a Cbz group (285). [Pg.399]

A significant number of works are concerned with the development of new membranes for the separation of mixtures of aromatic/alicyclic hydrocarbons [10,11,77-109]. For example, the following works can be mentioned. A mixture of cellulose ester and polyphosphonate ester (50 wt%) was used for benzene/cyclohexane separation [113]. High values of the separation factor and flux were achieved (up to 2 kg/m h). In order to achieve better fluxes and separation factors the attention was shifted to the modification of polymers by grafting technique. Grafted membranes were made of polyvinylidene fluoride with 4-vinyl pyridine or acrylic acid by irradiation [83]. 2-Hydroxy-3-(diethyl-amino) propyl methacrylate-styrene copolymer membranes with cyanuric chloride were prepared, which exhibited a superior separation factor /3p= 190 for a feed aromatic component concentration of 20 wt%. Graft copolymer membranes based on 2-hydroxyethyl methylacrylate-methylacrylate with thickness 10 pm were prepared [85]. The membranes yielded a flux of 0.7 kg/m h (for feed with 50 wt% of benzene) and excellent selectivity. Benzene concentration in permeate was about 100 wt%. A membrane based on polyvinyl alcohol and polyallyl amine was prepared [87]. For a feed containing 10 wt% of benzene the blend membrane yielded a flux of 1-3 kg/m h and a separation factor of 62. [Pg.257]

VP V-vinyl-2-pyrrolidone PVP polyVP EGDMA ethylene glycol dimethacrylate BA butyl acrylate TPT 1,1,1-trimethylolpropane trimethacrylate NIPA V-isopropyl acrylamide AA acrylic acid BIS VV-methylene bisacrylamide PVA polyvinyl alcohol EDTAD ethylenediamine-tetraacetic dianhydride PEGDA polyethyleneglycol diacrylate PETA pentaerythritol triacrylate. [Pg.2027]

Polymeric thickeners Gums Acacia Alginates Carageenan Chitosan Collagen Tragacanth Xantham Celluloses Sodium carboxymethyl Hydroxyethyl Hydroxypropyl Hyd roxypro pyl m ethyl Acrylic acids Carbomers Polycarbophil Colloidal solids Silica Clays Microcrystalline cellulose Hydrogels Polyvinyl alcohol Polyvinylpyrrolidone Thermoreversible polymers Poloxamers... [Pg.545]

Starch utilization in plastic and rubber compositions began in the 60s and 70s, with oxidised starch in rubber and other polymers, such as urethane foams, poly(vinyl alcohol) and copolymers of poly(ethylene-co-acrylic acid) formulations, and as a filler in plasticized polyvinyl chloride (PVC) [37,39]. In another technique, gelatinized starch was mixed with PVC latex and the water was removed to give a PVC-starch composition, which was mixed with a PVC plasticizer such as dioctyl phthalate (DOP). [Pg.87]

Kuila SB, Ray SK, Das P, Singha NR. 2011. Synthesis of full interpenetrating network membranes of poly(acrylic acid-co-acrylamide) in the matrix of polyvinyl alcohol for dehydration of ethylene glycol by pervaporation. Chem. Eng. Proc. Intensif 50(4) 391 03. [Pg.210]

Notes UTS ultimate tensile strength EAA ethylene-acrylic acid copolymer PE polyethylene PVOH polyvinyl alcohol. [Pg.20]

Tubicoat WLi. See Acrylic resin Tubifast AS 30. See Acrylates copolymer Tubigat R 130 NEW. See Acrylic acid Tubigum DK 5. See Acrylates copolymer Tubigum RPA 130, Tubigum RS Fiuessig. See Polyvinyl alcohol... [Pg.4615]

Vinyl alcohol polymer. See Polyvinyl alcohol Vinyl alcohol, polymer with acrylic acid, sodium salt. See Sodium acrylate/vinyl alcohol copolymer... [Pg.4678]

Hydroxyethyl acrylate Hydroxypropyl acrylate Karaya (Sterculia urens) gum Methacrylic acid PEG-8 cocoate PEG hydrogenated castor oil PEG-20 hydrogenated castor oil PEG-60 hydrogenated tallowate PEG-5M PEG-7M PEG-9M PEG-23M PEG-45M PEG-12 ricinoleate PEG-2 stearate Polyvinyl alcohol Rice (Oryza sativa) starch Styrene/acrylates copolymer Styrene/PVP copolymer... [Pg.4901]

Ethylhexanol Glyceryl hydroxystearate Isostearyl alcohol Linoleyl alcohol Methoxy tri propylene glycol acrylate Methyl acid phosphate Methyl methacrylate Mineral oil Nonoxynol-1 Nonoxynol-3 Octyl acrylate Oleic amidoethylimidazoline PEG-8 ditallate PEG-12 ditallate PEG-115M Pine lignin Poloxamer 124 Polyaspartic acid homopolymer, sodium salt Polybutene Polychlorinated biphenyls Polyvinyl alcohol (partially hydrolyzed) Sodium alum Sodium sulfite Sorbose Stearyl hydroxyethyl imidazoline Triacetin Trimethyl-1,3-pentanediol, 2,2,4-diisobutyrate Tris [1-(2-methyl-aziridinyl) phosphine oxide] paper additive... [Pg.5504]

The use of polymeric blend composites for corrosion protection of AA 2024-T3 has been reported, including composites formed by incorporating water-soluble conducting polymers (either polymethox-yaniline sulfonic acid or poly(4-(3-pyrrole) )butane sulfonate) into various binders (a cross-linked polyvinyl alcohol, a waterborne epoxy, a modified water-dispersible polyester, and a UV-curable urethane acrylate binder) [149]. The preparation of epoxy and polyaniline composite coatings has been described, using either nanodispersed EB particles [91] or EB that was first dissolved in selected amine hardeners before adding the epoxy resin [98]. Even with very low EB loadings, these workers reported enhanced corrosion protection for steel. [Pg.1624]