So now let me invert that idea completely: there is still chemistry occurring in high polymers, if you want to refer to a lack of chemistry as chemistry. With polymers, their inertness and lack of reactivity is a large part of their appeal. In many cases, that inertness comes naturally, while in other cases, it must be implanted in the polymer through the use of additives such as antioxidants, UV absorbers, hindered-amine light stabilizers, etc. In still other cases, the choice of the monomers can help create a lack of reactivity in the final product, such as choosing monomers that create hydrolysis-resistant polyamides and polyurethanes. But in all cases, the end result is (hopefully) the same - a lack of further reactions.
All of this then means that polymer chemists can spend as much time get a reaction to NOT occur as they can getting one to occur. Producing a non-reaction will seldom result in the screaming and shouting that often accompanies a successful reaction (waiting 6 months for accelerated-aging results will slowly kill the excitement of even the most enthusiastic chemist) but it is just as important. And even though it may be viewed as "anti-chemistry", it is still chemistry.