Biomimetic systems which can show a functional response when treated with external stimuli are advantageous in applications such as self-healing, drug delivery, diagnostic and sensing. Depolymerizable and dissipative chemical systems are ideal tools to synthesize biomimetic systems that mimic nature. While there is abundance of synthetic chemistry tools to design depolymerizable systems, there is a lack of synthetic and formulation methodologies for developing useful materials from them. Majority of this thesis is directed towards narrowing that gap in knowledge, by utilizing depolymerizable systems to synthesize useful materials such as hydrogel and polyelectrolyte complexes for applications including self-healing, drug delivery and sensing. Minor part of this thesis involves dissipative chemical systems and it is directed towards achieving artificial systems that mimic several dynamic pathways predominant in nature which are regulated in presence of energy input.