A highly transparent and stable metallopolymer was obtained using poly(vinyl chloride), ferric chloride hexahydrate and trimethylolpropane tris(3-mercaptopropionate). The prepared metallopolymer dispersion exhibited excellent hydrophobic and oleophobic properties, was highly soft and stable for more than six months, and could form a thin film easily using spin coating and casting techniques. The functional group changed during the reaction was analysed by ultraviolet/visible and Fourier transform infrared spectroscopy. The surface morphology of the films obtained was analysed by high resolution scanning electron microscopy. The amphiphobic properties of the metallopolymer were investigated by contact angle measurements using water and methylene iodide. The metallopolymer was functionalised further using the silane precursor to improve the transparency, thermal stability, scratch resistance and anti-staining properties. The results highlight the potential use of metallopolymers for a range of applications. 2+, AuCl 4À , PtCl 6 À , Cs + , Sn 4+ , Sn 2+ , Cd 2+ , Sb 3+ , TI + , As 2 O 3 , AsO 4 3À , Bi 3+ , Ph 3 PbCl, Ph 2 PbCl 2 , UO 2 2+ , VO 2+ , Bu 4 N + , TeO 3 2À, and NH 4 OH. 21 Based on the above concepts, a new type of multi-purpose metallopolymer was prepared using PVC, ferric chloride hexahydrate (FeCl 3 $6H 2 O) and with a mercapto functional group monomer. The addition of trimethylolpropane tris(3-mercaptopropionate) (TMSH) to PVC might enhance the thermal stability of PVC due to the higher boiling point (220 C/0.3 mmHg (lit.)) of

*Poly(D,L-lactide-co-glycolide) 50:50 (PLGA)/graphene oxide (GO) nanocomposite films were prepared with various GO weight fractions. A significant enhancement of mechanical properties of the PLGA/GO nanocomposite films was obtained with GO weight fractions. The incorporation of only 5 wt% of GO resulted in an~2.5-fold and~4.7-fold increase in the tensile strength and Young's modulus of PLGA, respectively. The thermomechanical behaviors of composite films were investigated by dynamic mechanical analysis. Results indicated that the values of T g and storage moduli of the PLGA/GO composites were higher than those of the pristine PLGA. The improvement in oxygen barrier properties of composites was presumably attributed to the filler effect of the randomly dispersed GO throughout the PLGA matrix. In this work, we also studied in vitro biodegradation behavior. PLGA/GO composite films were hydrolyzed at 37°C for periods up to 49 days. Because of the presence of GO nanosheets, degradation of composite films took place more slowly with increasing GO amounts.