Please check with the publisher which first published your work if they will allow a secondary publication. The authors' contract signed by you will usually provide detailed information on your rights, e.g. with regard to self-archiving.
The SHERPA/RoMEO listings provide an overview of publishers’ self-archiving policies.
To secure your rights to self-archiving it is recommended to grant the publisher only simple, non-exclusive rights of use in future publishing agreements.