Open the Calculator
Target Mโ, DP, or concentration across ATRP, RAFT, ROMP, and FRP. Includes macroinitiators and a block copolymer builder.
Start designing →Copolymer Composition
Predict instantaneous copolymer composition from feed ratio and reactivity ratios, with a composition diagram and azeotrope detection.
Open the calculator →GPC Calibration Converter
Convert a polystyrene equivalent molecular weight from your GPC report into a true molecular weight for your actual polymer.
Convert a result →Tg Predictor
Estimate a random copolymer or miscible blend's glass transition temperature from its components using the Fox equation.
Predict a Tg →Recipe Scaling
Scale any recipe up or down by a factor or between batch sizes while keeping every component's ratio the same.
Scale a recipe →Polymerization Mechanisms
How ATRP, RAFT, ROMP, and FRP actually build a chain: reaction schemes and the "why" behind each technique's controlled (or uncontrolled) character.
See the mechanisms →Air Free Reaction Setup
Schlenk line technique, the full freeze pump thaw procedure, and safety notes for running these polymerizations under inert atmosphere.
Read the guide →Monitoring Conversion & Internal Standards
How to take and analyze aliquots partway through the reaction, and why an internal standard is essential for trustworthy conversion data.
Read the guide →GPC Peak Interpretation
Columns, solvents, shouldering, and integration choices, with an interactive chromatogram to see how integration limits change Mn, Mw, and ฤ.
Read the guide →Glossary
Plain language definitions for Mn, ฤ, DP, CTAs, macroinitiators, and every other term used across the calculator and guides.
Look up a term →Build a Polymer Chain
A tiny maze game. Collect every monomer bead and dodge O₂, an inhibitor, and a chain transfer agent before they terminate your chain.
Play now →Meet the Founder
A polymer chemist's path from a community college chemistry class to a Ph.D. in polymer and DNA nanotechnology, and why this calculator exists.
Read the bio →