Barton moved to West London in August after being placed on the transfer list by Newcastle following a Twitter rant in which he criticised the club's board and how club was being run.
The midfielder has always publicly spoken out against owner Mike Ashley and managing director Derek Llambias. The 29-year-old has now claimed that other big-name players left the North East club after a bonus dispute.
Barton claimed he is not bitter after leaving the club and is happy see Newcastle performing well on the pitch this season.
Speaking on QPR’s podcast Open All R's, he added; "Newcastle, as a playing squad, were the only club in Premier League history not to sign a bonus sheet. It was unprecedented,"
"We refused as a playing staff (to sign) as they tried to railroad the players into signing a bonus sheet.
"In their opinion we were a paid workforce. They thought we were Sports Direct and we should do what the subordinates at Sports Direct do, forgetting they were dealing with 20-odd egos, probably 10 self-sufficient men in a position to make a number of different judgements.
"Myself and the bigger-name players at the time advised the playing staff because we were head of the playing committee not to sign the bonus sheet and that filtered back to boardroom level.
"It's no coincidence that I was given away.
"It's all about power and control. They are running the football club and it's going really well for them at the minute but that's more a testament to the players and the fans, and also the manager (Alan Pardew ). The manager has been different class."
