I wanted to know about the Sahabas who married christians and jews and whose wives did not accept Islam even after the marriage, for e.g. Muawiya I had one wife who was a jacobit christian, though i don't know if she accepted Islam or not, is there any other Sahaba ?
From the Tafsir: Ahkam ul Quran by Abu Bakr Ahmad bin Ali Al-Razi Al-Jassas
وروي أن عثمان بْن عفان تزوج نائلة بنت الفرافصة الكلبية وهي نصرانية وتزوجها على نسائه وروي عن طلحة بْن عبيد الله أنه تزوج يهودية من أهل الشام
It is narrated that Uthman Bin Affan married Na'ila bint al-Furafisa, of the tribe of Kalb, and she was a Christian, and he married her on previous (muslim) wives. And it is narrated about Talha bin Ubaid-Ullah that he married a Jewess from Syria.
وروي عن حذيفة أيضا أنه تزوج يهودية وكتب إليه عمر أن خل سبيلها , فكتب إليه حذيفة : أحرام هي ؟ فكتب إليه عمر : لا , ولكن أخاف أن تواقعوا المومسات منهن
It is narrated about Huzaifah that he married a Jewess. When Umar found out about it, he wrote to Huzaifah to seperate from the woman. Huzaifah wrote in reply that "Is she haram for me?" Umar replied: "No, but I fear that you may take the immoral ones among them".
So there are narrations about at least three companions that they married Jews or Christians:
Among them, Na'ila, the wife of Uthman, eventually accepted Islam but apparently sometime after the marriage.