<p>If you are interested in basic developmental work, you might look into programs in applied physics, chemistry or biophysics. Outside of engineering and these types of disciplines, the "discovery side of things" tends to be pretty qualitative, which wouldn't really allow you to leverage your chemE background. </p>
<p>If you want to leave chemE because you dislike the coursework, that's a good reason to pursue another degree; however, if you want to do biology or pharmaceutically related work, a chemE degree would still allow you to do that - especially in the medical field, where some very good basic science is being done by chemical engineers (Robert Langer at MIT, etc.). </p>
<p>A lot of people with chemE undergraduate degrees go into Tissue engineering, something you could do in graduate school within a variety of fields (most common ones are bioE and chemE).</p>