In summary, a new type of non-conjugated luminescent copolymer, PLVP, was synthesized by free radical copolymerization of two non-luminescent monomers, MLA and 2VP. In both solution and solid state, PLVPs exhibit intense blue emissions at 408 nm, and the quantum yield (ΦF) in the solution can reach 20%. As a non-conjugated luminescent polymer, however, the intrinsic PL of PLVP is attributed to the enhanced emission of pyridines by intra-chain interactions between pyridines and lactones. Such 'single-chain luminogens' of PLVPs exhibits ACQ properties. With increased solution concentration, the aggregation of polymer chains gives rise to inter-chain interactions, and new luminophores with smaller band gaps generate via TSC. Also, the emission of PLVPs can be tuned by molecular weight and ratio of monomer. The optimal molar ratio of MLA and 2VP is determined as 1:3, at which the maximum PL intensity can be obtained. This study not only expands the scope of luminescent polymers, but also provides a general approach to induced emission from non-luminescent monomers by copolymerization with proper comonomers.