Effect of different polyol-based plasticizers on thermal properties of polyvinyl alcohol:starch blends

被引：112

作者：

Aydin, Ahmet Alper ^{[1
]}

Ilberg, Vladimir ^{[2
]}

机构：

[1] Istanbul Tech Univ, Fac Chem & Met Engn, Dept Chem Engn, TR-34469 Istanbul, Turkey

[2] Univ Appl Sci Weihenstephan Triesdorf, Fac Gardening & Food Technol, D-85350 Freising Weihenstephan, Germany

来源：

CARBOHYDRATE POLYMERS | 2016年 / 136卷

关键词：

Starch; Polyvinyl alcohol; Plasticizer; Polyol; Thermal properties; Glass transition; LINKED POTATO STARCH; SURFACE CHARACTERIZATION; MECHANICAL-PROPERTIES; CITRIC-ACID; FILMS; STABILITY; MORPHOLOGY; ADDITIVES; GLYCEROL; BEHAVIOR;

D O I：

10.1016/j.carbpol.2015.08.093

中图分类号：

O69 [应用化学];

学科分类号：

070301 [无机化学];

摘要：

A series of gelatinized polyvinyl alcohol (PVA):starch blends were prepared with various polyol-based plasticizers in 5 wt%, 15 wt% and 25 wt% ratios via solution casting method. The obtained films were analyzed by Fourier transform infrared (FT-IR) spectroscopy, differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Remarkable changes have been observed in glass-transition temperature (T-g) and thermal stability of the samples containing varying concentrations of different plasticizers and they have been discussed in detail with respect to the conducted thermal and chemical analyses. The observed order of Tg point depression of the samples containing 15 wt% plasticizer is 1,4-butanediol - 1,2,6-hexanetriol - pentaerythriyol - xylitol - mannitol, which is similar to the sequence of the thermal stability changes of the samples. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：441 / 448

页数：8

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