What's the difference between a macroporous resin and a polyamide resin?
The choice of resins involves the integration of various factors (e.g., the size of molecules to be separated, the specific groups)The appropriate pore size should have a higher specific surface area, a suitable polarity, and a functional basis similar to that of adsorbed material
According to its polarity and the selected monomer molecular structure:(1) non-polar macroporous resin, styrene, two vinyl benzene polymer, also known as aromatic adsorbent (such as HPD-100, D-101, etc.)(2) medium polarity macroporous resin polyacrylate polymer, using multifunctional group methacrylate as cross linking agent, also called aliphatic adsorbent(3) polar macroporous resins contain sulfur and oxygen and amide groups, such as acrylamide(4) strongly polar macroporous resins, such as nitrogen oxides, contain nitrogen and oxygen groups
Macroporous resin1. principle: macroporous adsorption resin is based on styrene and propionate as monomer, adding ethylene, benzene as cross-linking agent, toluene and xylene as pore forming agent, they are cross-linked and polymerized to form a porous skeleton structureDifferent from the ion exchange resin used in the past, macroporous adsorption resin is a separation material which combines the principle of adsorption and screeningAdsorption is the result of van Edward force or hydrogen bondingThe screening is due to its porous structureTherefore, the organic compounds can be separated according to the adsorption force and the molecular weight, depending on the adsorption mechanism and screening principle of the resin
