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rose oil, Eucalyptus citriodora, Boronia citriodora and Pelargonium geraniums oil. It can be obtained by the extraction or distillation from the plants or by the hydrogenation process of nerol or geraniol. According to the literature survey, this alcohol is commonly applied in the perfumery and cosmetic industries, it is added to candles, soups or incense as a source of flavor. Also, citronellol can be applied as a plant-based insect (mosquito) repellent, mite or pets attractant or antifungal agent. Due to the presence of the primary hydroxyl groups in it structure, it is used as a chemical for the production of rose oxide under the cycle of transformations including it photooxygenation to allyl hydroperoxide, it reduction with sodium sulfite to diol and finally diol ring-closure in the presence of sulfuric acid. Also, citronellol is used for the preparation of hydroxydihydrocitronellol and hydroxydihydrocitronellal [1-9]. It is useful reagent in the preparation of the aroma monoesters, diesters or tetraesters of acids and acid anhydrides. Monoesters of citronellol found their place as a fragrance or flavors added to many detergents, perfumes, medical products or laundry liquids. However, the diesters or tetraesters can be potential flavor compounds for different products or plasticizers for polymers [9-18]. Citronellol is also suitable reagent for the synthesis of it methacrylate ester under the lipase catalysed transestrification reaction using the following acylating agents: methyl methacrylate, vinyl methacrylate and 2,3-butanedione monooxime methacrylate [19]. The synthesis of citronellyl methacrylate with high yield can be performed under the amine catalysed reaction of citronellol with methacryloyl chloride according to Ref [20]. which is presented in this paper. This compound due to the presence of polymerizable double-double bonds in it structure can be useful monomer for the preparation of polymers and copolymers.

The physicochemical properties such as swelling in polar and non-polar solvents, moisture resistance, chemical resistance, ability for gelatinization and the thermal properties along with the evolution of volatile decomposition products of some starch-g-copolymers obtained through the grafting of benzyl methacrylate monomer onto potato starch have been studied. The chemical structure of copolymers was confirmed using ATR-FTIR analysis. The prepared materials were characterized by completely different properties than unmodified potato starch due to the covalent bonding of poly(benzyl methacrylate) chains onto starch backbone. The copolymers were not able to gelate; however, they exhibited higher swelling in non-polar solvents, lower swelling in polar solvents and higher resistance toward moisture, acid and base conditions than unmodified potato starch. In addition, DSC analysis showed that T g of copolymers was shifted to a little higher values as compared to T g of poly(benzyl methacrylate). The thermal stabilities of copolymers and potato starch were comparable. Their decomposition took place in two main stages connected with the emission of various volatile decomposition products (CO 2 , CO, H 2 O, CH 4 , aldehydes, alcohols, furan derivatives, acids, benzyl methacrylate) in inert atmosphere as it was confirmed based on the simultaneous TG/DSC/ FTIR analysis.

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The synthesis, thermal behavior, and characterization of the decomposition products of linear geranyl diesters: digeranyl succinate, digeranyl glutarate, digeranyl adipinate, and digeranyl sebacinate were presented. The linear geranyl diesters were prepared in direct esterification process of a molar stoichiometric ratio of geraniol and suitable acidic reagent in solvent-free medium at 130°C using butylstannoic acid as a catalyst. Their structure was confirmed based on FTIR, 1 H-and 13 C-NMR spectra. It was proved that the use of tin catalyst allowed decreasing the reaction time and increasing the final conversion of substrates when compared to non-catalyzed process. It considerably simplifies the processing by reduction of the preparation cost and thus this new method of synthesis of aroma diesters may be attractive for practical applications. The thermal behavior of prepared compounds was studied by TG/DSC/FTIR coupled method. TG analysis showed that diesters are thermally stable up to temperatures above 200°C. The DTG curves confirmed that these decomposition run as a single-stage process. The T max1 were in the range of 294.5-313.8°C depending on the aliphatic chain length (-CH 2 -) n in the structure of aroma diesters, which was in accordance with DSC data. The analysis of the gases evolved during heating of diesters in inert atmosphere indicated on the asymmetrical disrupt of their bonds. The cleavage of ester bond and O-geranyl bond was expected. It resulted in production of the mixture of derivatives of geraniol (acyclic and alicyclic monoterpene hydrocarbons) like myrcene, ocimene, or limonene as main decomposition products. In addition, the formation of anhydride, lactone, or ketone functionalities among the degradation products clearly confirmed the proposed degradation path of studied diesters.

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In this study, the chemical modification of unsaturated polyesters and the influence of polyester's structure on thermal and viscoelastic properties have been presented. The structure of unsaturated polyesters obtained in polycondensation of cyclohex-4-ene-1,2-dicarboxylic anhydride (THPA), maleic anhydride and only one suitable symmetrical glycol: ethylene glycol or 1,4-butanediol (BDO) or 1,6-hexanediol has been modified by peracetic acid. The selective oxidation of unsaturated polyesters conducted in mild time and temperature conditions was a successful and effective method to prepare new materials/unsaturated epoxy polyesters/containing epoxy groups in cycloaliphatic rings and carbon-carbon double bonds in polyester chain. The unsaturated epoxy polyesters were capable of both copolymerization with vinyl monomer and polyaddition reactions with suitable curing agent. Therefore, they were successfully used as a component of low styrene content copolymers. As was confirmed by DSC, DMA, and TGA analyses, polyester's structure had significant influence on thermal and viscoelastic properties of styrene copolymers. The properties of styrene copolymers prepared from unsaturated epoxy polyesters were considerably better compared with those obtained for styrene copolymers from unsaturated polyesters.

The effect of starch-g-copolymers structure on the thermal decomposition course under oxidative conditions by using the simultaneous TG/DSC/FTIR technique has been investigated. To those studies, two types of starch-g-copolymers obtained under the graft copolymerization process of aromatic acrylate monomers such as phenyl acrylate and benzyl acrylate onto starch have been chosen. The TG/DSC investigations confirmed that the course of the decomposition process of all studied copolymers under the heating and in the presence of air was similar and run through three large stages. TG/FTIR studies indicated on the same decomposition mechanism under the first decomposition stage, however, on the completely different decomposition mechanism under the second decomposition stage of the copolymers which was directly dependent on the structure of grafted polymer. In addition, it was also proved that the percent grafting of the copolymers has not influenced on its decomposition course and its decomposition mechanism. The grafting percent influenced only on the Dm in each decomposition stage and on the intensity in the emission of the volatile species.