molecular weight homopolymerization liquid polyacrylamide
Homopolymerization Polyacrylamide -Henan GO Biotech Co.,Ltd
Homopolymerization Polyacrylamide Molecular: C3H5NO CAS NO: 9003-05-8 Applications: For sewage treatment, especially for wastewater from iron and steel plant, electroplating, metallurgical and coal factory.
Molecular Weight of Repeat unit: g mol-1: 71.08: Van-der-Waals Volume V vW: mL mol-1: 38.60: Molar Volume V m: mL mol-1: 59.40: Density ρ: g mL-1: 1.20: Solubility Parameter δ: MPa 1/2: 24.0 - 27.8: 25.9: Molar Cohesive Energy E coh: J mol-1: 34100 - 45900: 39800: Glass Transition Temperature T g: K: 436: Molar Heat Capacity C p: J (mol K)-1
High Molecular Weight Liquid Polyacrylamide - OSS Ltd
OS POLYCAP LQ – High Molecular Weight Liquid Polyacrylamide PHPA Partially-hydrolyzed polyacrylamide is a linear copolymer of anionic acrylate and nonionic acrylamide monomers. The polymer chain length and ratio of monomers can be varied during manufacture. PHPA acts as an excellent encapsulating polymer relying on a combination of anionic character and chain length to reduce…
Properties of Polyacrylamides
Polyacylamides are high molecular weight water soluble or swellable polymers formed from acrylamide or its derivatives. Their glass transition temperature is well above room temperature (> 400 K). The only commercially important polyacrylamide is poly (2-propenamide) which is simply called polyacrylamide or PAM [-CH 2 CH (CONH 2)-].
Synthesis and Characterization of Different Molecular
The polyacrylamide product was precipitated from its liquid solution using acetone and then dried under vacuum at 60ºC for 24 h to produce a yield of 70-75% of low molecular weight polyacrylamide. The molecular weight was found to be 170 X 103 g/mol using viscosity measurements, which is considered to be low.
Polyacrylamides (PAMs) are used to increase the dry strength of papers by hydrogen bonding. PAM of molecular weight of 100,000 to 500,000 is used at about 0.5% on pulp and also acts as a retention aid. It is sometimes used to allow increased use of lower quality pulps such as secondary and hardwood fiber.
LIQUID / SOLIDS SEPARATION IN WASTEWATER TREATMENT
liquid / solids separation in wastewater treatment & biosolids dewatering chemical products polyacrylamide polymer shorthand polyacrylamide cchhch 2222––––cccc c=o nhnnhhnh 222 n hhh n is about 282,000 @ 20 million molecular weight. homopolymerization yellow = acrylamide flocculants are typically 200,000+ monomers anionic
Charge Effects in the Adsorption of Polyacrylamides
A homo- ionic sample of this kaolinite was prepared using a standardized technique described earlier [11, 12]. The I~-labeled non-ionic polyacrylamide (PAM, 5.2 X 106 molecular weight) and 33% hydrolyzed polyacrylamide (HPAM, 6.6 X 105 molecular weight) used here were synthesized and characterized by American Cyanamid Company.
Polymer - Wikipedia
A polymer (/ ˈ p ɒ l ɪ m ər /; Greek poly-, "many" + -mer, "part") is a substance or material consisting of very large molecules, or macromolecules, composed of many repeating subunits. Due to their broad spectrum of properties, both synthetic and natural polymers play essential and ubiquitous roles in everyday life. Polymers range from familiar synthetic plastics such as polystyrene to
Emulsion Polymers | Liquid Polymeric Treatment Chemicals
High Molecular Weight Anionic Flocculant Water Dispersion Polyacrylamide: Accepta 4351: Effluent: High performance PolyDADMAC based cationic coagulant - 40% Active: Accepta 4538: Low environmental impact: Medium molecular weight cationic acrylamide - 35% Charge: Accepta 4539: Low environmental impact: High molecular weight cationic acrylamide
CN1168894A - Method for preparing high molecular wt
The high molecular weight anionic polyacrylamide is prepared by alkaline polymerization frist then conducting hydrdysis, controlling the pH valve of the reaction system, adding persulphate, soluble