Reusing marinade JUST used for raw chicken
It's a bad idea to re-use a marinade, especially to marinade a different meat or poultry:


Chicken may contain salmonella, if yours does and you re-use the marinade you'll then contaminate the next thing
By the time you re-use it is old, the older it is the less safe it is to use
It will have lost most of its effectiveness: the flavors and acidity will have acted on the chicken, so the marinade will have lost much of its flavor and ability to tenderize.  Even if the marinade was safe to use again it wouldn't have the kind of kick to give you a good result on the next thing


It's a good thing to want to re-use things where possible and avoid waste. In this case it's not worth the risk, and unlikely to impart any flavor anyway.