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I doubt it, even oaths of brotherhood are nothing in comparison to their oaths of loyalty to the Emperor. They're almost literally brainwashed to serve the Emperor until their death and it is only under extreme circumstances that a Space Marine even considers turning to Chaos. In fact, most of the time they aren't even aware it's happening (slow corruption) or are completely possessed in some way or another by one of the gods (nurgle disease/tzeentch magic/red mist).
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