Mechanical And Thermal Properties Of Poly(3-hydroxybutyrate) Blends With Starch And Starch Derivatives

dc.creatorInnocentini-Mei L.H.
dc.creatorBartoli J.R.
dc.creatorBaltieri R.C.
dc.date2003
dc.date2015-06-30T17:30:02Z
dc.date2015-11-26T14:08:20Z
dc.date2015-06-30T17:30:02Z
dc.date2015-11-26T14:08:20Z
dc.date.accessioned2018-03-28T21:08:55Z
dc.date.available2018-03-28T21:08:55Z
dc.identifier
dc.identifierMacromolecular Symposia. , v. 197, n. , p. 77 - 87, 2003.
dc.identifier10221360
dc.identifier10.1002/masy.200350708
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0141761281&partnerID=40&md5=c474a5b2153002d1c7325da8710661f3
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/102318
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/102318
dc.identifier2-s2.0-0141761281
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1240977
dc.descriptionPoly(3-hydroxybutyrate) (PHB) is a highly crystalline, biodegradable and biocompatible thermoplastic. However, its limited utilization as a commodity plastic is associated to both high cost and very poor mechanical properties. Blending PHB with a natural polymer, such as starch, is one way to improve its properties and to get low price raw materials, though they are not miscible since there are no strong interactions between the hydrophilic starch and the hydrophobic PHB. In this study binary blends of PHB were prepared with natural starch, starch-adipate and grafted starch-urethane derivatives. The PHB blends were characterized in terms of their mechanical and thermal properties. For all blends a decrease of the Young modulus was observed as compared to the pure PHB. However, blends containing natural starches and starch adipate resulted in brittle materials. A significant decrease of both glass transition temperature (Tg) and melting point (Tm) was observed for all formulations. The best results, lower modulus and Tg were obtained with grafted starch-urethane blends using poly(propylene glycol).
dc.description197
dc.description
dc.description77
dc.description87
dc.descriptionLee, B., Pometto A.L. III, Fratzke, A., Bailey, T.B., Biodegradation of degradable plastic polyethylene by Phanerochaele and Streptomyces species (1991) Appl. Environ. Microbiol., 57, pp. 678-685
dc.descriptionSteinbuchel, A., Polyhydroxyalkanoic acids (1991) Biomaterials: Novel Materials from Biological Sources, pp. 124-213. , D. Byrom (ed.). Stockton, New York
dc.descriptionDoi, Y., (1990) Microbial Polyesters, , VCH, New York
dc.descriptionByrom, D., Polyhydroxyalkanoates (1994) Plastics from Microbes: Microbial Synthesis of Polymers and Polymer Precursors, pp. 5-33. , D.P. Mobley(ed.). Hanser Munich
dc.descriptionSaennkora, L., Gercberga, Z., Nikolaeva, V., Dzene, A., Bibers, I., Kalnin, M., Mechanical properties and biodegradation characteristics of PHB-based films (2000) Process Biochemistry, 35, pp. 573-579
dc.descriptionIkejima, T., Inoue, Y., Crystallization behavior and environmental biodegradability of the blends films of poly(3-hydroxybutyric acid) with chitin and chitosan (2000) Carbohydrate Polymers, 41, pp. 351-356
dc.descriptionMani, R., Bhattacharya, M., Properties of injection moulded starch/synthetic polymer blends-III. Effect of amylopectin to amylose ratio in starch (1998) Europen Polymer Journal, 34 (10), pp. 1467-1475
dc.descriptionGraaf, R.A., Broekroelofs, A., Janssen, L.P.B.M., The acetylation of starch by reactive extrusion (1998) Starch, 50 (5), pp. 198-205
dc.descriptionVerhoogt, H., Stpierre, N., Truchon, F.S., Ramsay, B.A., Favis, B.D., Ramsay, J.A., Blends containing poly(hydroxybutyrate-co-12-percent-hydroxyvalerate) and thermoplastic starch (1995) Canadian Journal of Microbiology, 41 (1), pp. 323-328
dc.descriptionDubois, P., Krishnan, M., Narayan, R., Aliphatic polyester-grafted starch - Like polysaccharides by ring-opening polymerization (1999) Polymer, 40, pp. 3091-3100
dc.descriptionMani, R., Bhattacharya, M., Properties of injection moulded starch/synthetic polymer blends- IV. Thermal and morphological properties (1998) Europen Polymer Journal, 34 (10), pp. 1477-1487
dc.descriptionAlmeida, G.S.G., (2001), Master Thesis "Estudo e Desenvolvimento de Compósitos Parcialmente Degradáveis de Polietileno de Baixa Densidade (PEBD) com Amido", Chemical Engineering School, State University of Campinas, JulySaad, R.G., Mansour, A.A., Hamed, A.H., Dieletric investigation of cold crystallization of poly(3-hydroxybutyrate) (1997) Polymer, 16 (38), pp. 4091-4096
dc.descriptionYoshie, N., Nakato, K., Fujiwara, M., Kasuya, K., Abe, H., Doi, Y., Inoue, Y., Effect of low molecular weight additives on enzymatic degradation of poly(3-hydroxybutyrate) (2000) Polymer, 41, pp. 3227-3234
dc.languageen
dc.publisher
dc.relationMacromolecular Symposia
dc.rightsfechado
dc.sourceScopus
dc.titleMechanical And Thermal Properties Of Poly(3-hydroxybutyrate) Blends With Starch And Starch Derivatives
dc.typeActas de congresos


Este ítem pertenece a la siguiente institución