Polymers are commonly used microchip materials ${?}^1$ in microfluidic systems ${?}^2.$ Isobornyl acrylate is a photo$-$

polymerizable monomer that is employed in micro$-$fluidic devices because of desirable properties, such

as inertness, transparency, and

resolution. Copolymerization of IBA with

isobornyl acrylate $($IBA$)$

other monomer units allow to produce

tailored materials with specialized

functions. Recently, Jakubowski and co$-$

and n$-$butyl acrylate $($nBA$)$ monomer

units to produce statistical $($random$)$

n$-$butyl acrylate $($nBA$)$

In this task, you are asked to analyze the glass transition temperature of the

IBA$/$nBA copolymers and compare it to acrylate homopolymers.

$($a$)$ Three statistical P$($IBA$-$co$-$nBA$)$ copolymers with IBA$/$nBA weight fractions of $79/21,53/47,$ and $19/81$

have been produced. Using the experimental DSC thermograms, estimate the $T_g$ of the statistical

copolymers and parent homopolymers $-$ poly$($isobornyl acrylate$)($PIBA$)$ and poly$($n$-$butyl acrylate$)($PnBA$).$

Report the data as shown in the table below.