#TITLE_ALTERNATIVE#

• Main Author: Alio-NIM: 20504020, La
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/8448
• Institution: Institut Teknologi Bandung

Abstract: <br /> <br /> <br /> <br /> <br /> The increasing volume of plastic used has caused the serious problem in environment. On way to solve this problem is preparation of new material that can be decomposed by microorganisms in environment. The biodegradable plastic may be prepared from non biodegradable material by modification of theirs physical and chemical properties, preparation of theirs copolymer and polyblends. The main problem in preparation of polyblends is compatibility between polymers mixtures. In this work has focused in preparation of polyblends between poly(vinyl alcohol) (PVA) and poly(-caprolactone) (PCL) in various compositions by casting of polymers solution. Characterizations of polyblends obtained were carried out by analysis of functional groups (FTIR), thermal property (DSC and TGAIDTA), mechanical properties (Tensile tester), and crystallinity (XRD). The results of polyblends showed that the compatible and homogeneous polyblends were obtained in dimethyl sulfoxideltetrahydrofuran (DMSOITIJF) composition of 3:1 and PCL composition less than 15%. The absorption intensity of carbonyl and alkyl groups observed in 1725 cm-1 and 2940 cm-1increased with increasing PCL composition in polyblends. The analysis of thermal properties showed that melting point (Tm) and fusion of enthalpy (AHm) for PCL region in polyblend decreased with decreasing PCL composition, but melting point (Tm) and fusion of enthalpy (dHm) for PVA region increased. The thermal degradation of PCL has occurred one stage decompotion, while in PVA and its polyblend has occurred in three stages decompotion with wide temperature range.