title: Mechanical properties of PNIPAM based hydrogels: A review.
abstract: Materials which adjust their properties in response to environmental factors such as temperature, pH and ionic strength are rapidly evolving and known as smart materials. Hydrogels formed by smart polymers have various applications. Among the smart polymers, thermoresponsive polymer poly(N-isopropylacrylamide)(PNIPAM) is very important because of its well defined structure and property specially its temperature response is closed to human body and can be finetuned as well. Mechanical properties are critical for the performance of stimuli responsive hydrogels in diverse applications. However, native PNIPAM hydrogels are very fragile and hardly useful for any practical purpose. Intense researches have been done in recent decade to enhance the mechanical features of PNIPAM hydrogel. In this review, several strategies including interpenetrating polymer network (IPN), double network (DN), nanocomposite (NC) and slide ring (SR) hydrogels are discussed in the context of PNIPAM hydrogel.
authors: Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China; Laboratory of Food Engineering, Department of Food Science & Technology, University of Karachi, Karachi, Pakistan.
authors: Muhammad Abdul
authors: MA
authors: Haq
authors: Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China. Electronic address: ylsu@iccas.ac.cn.
authors: Yunlan
authors: Y
authors: Su
authors: Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
authors: Dujin
authors: D
authors: Wang
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D019245:Compressive Strength; D020100:Hydrogels / Q000737:chemistry*; D055595:Mechanical Phenomena; D053761:Nanocomposites / Q000737:chemistry; D058105:Polymerization
chemical_list: D000180:Acrylic Resins; D020100:Hydrogels; C052970:poly-N-isopropylacrylamide
keywords: Hydrogel; Mechanical properties; Poly(N-isopropylacrylamide); Smart material