Welcome to our customer service department, where you will find the information you need to order Polymer Source products.
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Products listed on-line indicate the product is in stock. 1st column is the product ID or lot number, 2nd column shows average molecular weights (number average Mn), third column represents molecular weights distribution or molecular dispersity of the product (Mn/Mw) or PI.
For simplicity polymers are abbreviated in the catalog. For example:
S stands for styrene;
MMA stands for methylmethacrylate;
PEG represents polyethylene glycol;
EO for ethylene oxide;
2VP represents 2-vinyl pyridine. Similarly SEO stands for (styrene-block-ethylene oxide) and SEOS stands for (styrene-block-ethylene oxide-b-styrene) triblock copolymer.
For diblock or triblock polymers, the second column represent the average molecular weights ( Mn) of the first polymer block followed by 2nd and third as shown in the abbreviated name. For example in the second column: 20-b-15 for poly(styrene-b-methyl methacrylate) (SMMA) represents Mn of polystyrene is 20,000 and Mn of poly methyl methacrylate is 15,000.
Some polymer tables may contain a field in the comments section denoted "f" which represents a fraction or percent amount. For example carboxy terminated polystyrene with an "f" = 0.98 implies 98% of the polymer chains bear carboxy end-functionalization.