Relating the properties of cellulose fibers to structure Thesis Submitted to AcSIR for the Award of the Degree of DOCTOR OF PHILOSOPHY In Engineering Science By Aakash Sharma Registration Number: 20EE14A26051 Under the guidance of Dr. Guruswamy Kumaraswamy and Dr. Shirish Thakre Polymer Science and Engineering Division CSIR-National Chemical Laboratory, Pune 411008