A survey commissioned by campaigners for a second EU referendum found that 69% of respondents said Brexit would make Scottish independence more likely.
The poll conducted by Populous for the Right to Vote campaign also found that 54% of Scots support a second referendum on the terms of Brexit.
It follows a warning from Theresa May that allowing a second EU referendum “could have significant implications for how we handle referendums in this country - not least, strengthening the hand of those campaigning to break up our United Kingdom.”
Have previously rejected any suggestion of a second referendum on Scotland’s future, saying “now is not the time” for another vote on independence, Mrs May also warned in the past week that a no-deal Brexit would put the Union at risk, as she tries to salvage her Brexit deal.
A Downing Street spokesman said on Tuesday that the Prime Minister was underlining her belief that “where the public deliver a verdict, it’s important that verdict is respected”.
Nicola Sturgeon has said she will reveal details of her timetable for a second independence referendum within a “matter of weeks”.
Conservative former minister Dr Phillip Lee, a leading supporter of the Right to Vote campaign, said the poll points to the “potentially catastrophic consequences of the Brexit deal”.
“Time is running out to get a deal that works for the whole of the UK.
“The only way to find a way through the political deadlock is to let the people decide on how the country should proceed, by giving them a final say.”