If a PhD student is working on a research project which is neither related to his thesis topic, nor supported by the university in which he is studying or a faculty member; Does he have the right to use his academic affiliation and contact email?
There are two points here,
- If the student is using the university facilities, he may acknowledge that support in the Acknowledgement section of his paper not by using the university affiliation.
- The university in which the student is studying in doesn't necessarily want to be associated with whatever research he does in his free hours.
P.S.: Does this consideration apply to the researchers who work in a research institute or company?