Polymer Abbreviations

Macromolecular Microstructure

MW - Molecular Weight
MM - Molar Mass
MWD - Molecular Weight Distribution
MMD - Molar Mas Distribution
Mn - Number average MW (measure of smaller segments)
Mw - Weight average MW (Approximate Average)
Mp - peak average MW (MW with maximum frequency)
Mv - Viscosity average MW
Mz - Z average MW (Weighted Mw, a measure larger segments)
Mz2 - Z2 average MW ( Weighted2 Mw)
PDI - Poly Dispersity Index - Mw/Mn (Measure for distribution)

CC - Comonomer Content / Chemical Composition
CCD - CC Distribution
SCB - Short Chain Branching
LCB - Long Chain Branching
SCBD - SCB Distribution

Characterization Techniques
GPC - Gel Permeation Chromatography
SEC - Size Exclusion Chromatography
HPLC - High Performance Liquid Chromatography
HT-HPLC - High Temperature HPLC
2D-HPLC - Two dimentional HPLC (HPLC x SEC)
SGIC - Solvent Gradient Interactive Chromatography
TGIC - Temperature/Thermal Gradient Interactive Chromatography
TREF - Temperature Rising Elution Fractionation
CRYSTAF - Crystallization Analysis Fractionation
CEF - Crystallization Elution Fractionation
Crossfractionation - 2D fractionation e.g. TREFxGPC

d/D - Density
MI - Melt Index
MFR - Melt Flow Rate