acrylic {netSEM}

A data frame of an acrylic polymer degradation experiment

Description

This data set is from a study of photodegradation of acrylic polymer. In this work, polymeric samples were exposed to different levels of light exposures and resulting optical changes were determined through optical spectroscopy. *IrradTot* (total applied irradiance) is the main exogenous variable and *YI* (yellowness index) is the endogenous variable (response). The other columns in the data set (*IAD1*, *IAD2*, *IAD2p*, and *IAD3*) are induced absorbance to dose values extracted from optical absorbance spectra as single metrics and used as intermediate unit level endogenous (response) variables in the netSEM analysis. Photodegradation in a stress and response framework: poly(methyl methacrylate) for solar mirrors and lens. Doi: 10.1117/1.JPE.2.022004

Usage

data(acrylic)

Format

A 357 by 6 data frame of continuous variables

YI

Yellowness index of acrylic sample

IrradTot

Total applied solar irradiance

IAD1

Induced Absorbance to Dose of the Fundamental Absorption Edge - Optical absorbance at 275 nm

IAD2

Induced Absorbance to Dose of the Tinuvin light stabilizer doublet peak at 298 nm

IAD2p

Induced Absorbance to Dose of the Tinuvin light stabilizer doublet peak at 339 nm

IAD3

Induced Absorbance to Dose in the yellowing region, at 440 nm

Author(s)

Myles P. Murray, Laura S. Bruckman, Roger H. French

Source

Solar Durability and Lifetime Extension (SDLE) Research Center, Case Western Reserve University