You may wish to publish your thesis, in whole or in part, with or without modification. If you will be publishing substantial amounts of third party copyright material in your thesis, it is important to obtain clearance from any copyright owners, so that you are able to do so without delay or complications. Insubstantial amounts of copyright material, e.g. in short quotations, is accepted academic practice, and also permitted under statutory exceptions for research in UK copyright law, provided the publishing is non-commercial. Academic publication is generally considered to be non-commercial, as authors are not paid, but publishers may not be covered to sell the work. Having permissions in place is favoured by publishers for this reason.
You must make sure you have properly cited or acknowledged all third party ideas and content to avoid allegations of plagiarism.
Where your thesis is sponsored and you have signed contractual agreements, you may need to check that publication will not breach those contracts leaving you or the University open to legal action.
Archiving your thesis in BURA is required under University regulations, so it is important where you publish your thesis in whole or in part, that you tell your publisher of this requirement to deposit your final thesis in the University's open access research archive.
As standard, many publishers ask you to transfer full copyright ownership to them, however, as a contract, it must be open to negotiation, and you should try to retain your copyright ownership if possible. You may be able to choose an open access option, giving the publisher a licence to publish. If publishing with a Brunel academic as co-author, you must publish using open access mechanisms under University policy. This gives your work maximum visibility and raises your profile, and that of the University.
It's possible for work to be placed under a temporary embargo where it will be published. However you should advise your publisher, that the thesis will be archived in BURA, when the embargo expires. See Submitting your thesis for more information on applying for an embargo.