Synthesis of Pure and Engineered Soft Materials

In modern times, there are a number of soft materials in our daily lives, viz., plastic, hydrogels, and elastomers. Even the vast majority of human organs are composed of soft materials. Studies on soft materials are carried out mainly for two purposes: (a) developing a soft hand that mimics the human skin and can perform soft manipulations or an anthropomorphic/prosthetic hand and (b) generating soft actuators. Integrating chemistry and physics in the study of soft materials particularly focused on materials like colloids, polymers, surfactants, and liquid crystals, offers vital insight into biological soft material self-assembly mechanisms. The ultimate goal of exploiting soft materials is to manipulate/alter objects without damaging or leaving any marks behind. A steady hold resulting from an area contact would be the other benefit. Among the currently used soft materials, the most common are polymer composite, elastomer, natural rubber, synthetic rubber, and nanoparticulated polymer composite. Furthermore, many engineered and synthetic soft materials depend on self-organization, frequently predicated on systematic ordering generated by noncovalent interactions like hydrogen bonding or screened electrostatic forces. Presently, materials may be designed at the nanoscale level by humans using either bottom-up (self-organization) or top-down (atom by atom or molecule by molecule) approaches. Interestingly, soft nanotechnology is a component of the later approach, and soft materials’ ability to self-organize can be used to produce a variety of nanostructures for a diversity of applications. Many engineered soft materials have been created and are essential to today’s technology. Examples include soft nanotechnology, soft robotics, and soft lithography, which demonstrate the extensive importance of soft materials in biology and engineering. Understanding how biological materials self-organize as soft matter with flow characteristics is a continuous and challenging task. It can act as an intermediate, i.e., between a crystalline solid and a liquid (therefore “soft”) beyond the intramolecular covalent bond. Interestingly, atomic/molecular level manipulation can provide logical methods for producing functional materials that strongly connect with molecular system designs and are particularly helpful for creating innovative soft material functionalities. With the theme of all the exciting characteristics of soft materials developed by different researchers, the present chapter covers different synthetic routes and methods of some pure and engineered soft materials.