This is a publication under the series Advances in Polymer Science. The series presents critical review of the present and the future trends in polymer and biopolymer science.It covers all areas of research in polymer and biopolymer science, including organic chemistry, physical chemistry and material science . This particular volume Recent advances in ADMET polymerisation, Liquid Crystalline Polymers, Regioselective Polymerisation of 1- Alkynes etc. Referred by grauate , postgraduate students and researches in the selected area of specialisation.