Preparation and characterization of biodegradable polymer blends from poly(3-hydroxybutyrate)/poly(vinyl acetate)-modified corn starch
學年 103
學期 2
出版（發表）日期 2015-03-26
作品名稱 Preparation and characterization of biodegradable polymer blends from poly(3-hydroxybutyrate)/poly(vinyl acetate)-modified corn starch
作品名稱（其他語言）
著者 Sun-Mou Lai; Wei-Wei Sun; Trong-Ming Don
單位
出版者
著錄名稱、卷期、頁數 Polymer Engineering & Science 55(6), pp.1321–1329
摘要 Biodegradable polymer blends prepared by blending poly(3-hydroxybutyrate) (PHB) and corn starch do not form intact films due to their incompatibility and brittle behavior. For improving their compatibility and flexibility, poly(vinyl acetate) (PVAc) was grafted from the corn starch to prepare the PVAc-modified corn starch (CSV). The resulting CSV consisted of 47.2 wt% starch-g-PVAc copolymer and 52.8 wt% PVAc homopolymer and its structure was verified by FT-IR analysis. In comparison with 35°C of the neat PVAc, the glass transition temperature (Tg) of the grafted PVAc chains on starch-g-PVAc was higher at 44°C because of the hindered molecular mobility imposed from starch on the grafted PVAc. After blending PHB with the CSV, structure and thermal properties of the blends were investigated. Only a single Tg was found for all the PHB/CSV blends and increased with increasing the CSV content. The Tg-composition dependence of the PHB/CSV blends was well-fitted with the Gordon-Taylor equation, indicating that the CSV was compatible with the PHB. In addition, the presence of the CSV could raise the thermal stability of the PHB component. It was also found that the presence of the PHB and PVAc components would not hinder the enzymatic degradation of the corn starch by α-amylase.
關鍵字
語言 en_US
ISSN 1548-2634
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者 Trong-Ming Don
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版,紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/104734 )