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Physical Properties of Chemically Modified Starch(RS4)/PVA Blend Films—Part 1

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Abstract

In this paper, we report on the physical properties of films that have been synthesized by using native corn starch (NS) and chemically modified starch (RS4). NS or RS4/PVA blend films were synthesized by using the mixing process and the casting method. Glycerol (GL), sorbitol (SO), and citric acid (CA) were used as additives. The chemically modified starch (RS4) was synthesized by using sodium trimetaphosphate (STMP) and sodium tripolyphosphate (STPP) as a crosslinker. Then, the RS4 thus synthesized was confirmed by using the pancreatin-gravimetric method, swelling power and an X-ray diffractometer (XRD).

Tensile strength (TS), elongation (%E), swelling behavior (SB), and solubility (S) of the films were measured. The result of the measurements indicated the RS4-added film was better than the NS-added film. Especially, the RS4/PVA blend film with CA as an additive showed the physical properties superior to other films.

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Acknowledgments

This research was supported in part by BK21 program from the Ministry of Education & Human resources development, Republic of Korea.

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Authors and Affiliations

  1. Faculty of Applied Chemical Engineering, Chonnam National University, 300 Yongbong-dong, Buk-gu, Kwangju, 500–757, South Korea

    Wan-Jin Lee

  2. Department of Thoracic and Cardiovascular Surgery, Yonsei Cardiovascular Center, Yonsei University, College of Medicine, 134 Sinchon-dong, Seodaemun-gu, Seoul, 120-752, South Korea

    Young-Nam Youn

  3. Department of Mineral & Energy Resources Engineering, Chonnam National University, 300 Yongbong-dong, Buk-gu, Kwangju, 500–757, South Korea

    Yeon-Hum Yun

  4. Department of Applied Chemical Engineering, Chonnam National University, 300 Yongbong-dong, Buk-gu, Kwangju, 500–757, South Korea

    Soon-Do Yoon

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  1. Wan-Jin Lee
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  2. Young-Nam Youn
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  3. Yeon-Hum Yun
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Correspondence to Soon-Do Yoon.

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Lee, WJ., Youn, YN., Yun, YH. et al. Physical Properties of Chemically Modified Starch(RS4)/PVA Blend Films—Part 1. J Polym Environ 15, 35–42 (2007). https://doi.org/10.1007/s10924-006-0040-5

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  • DOI: https://doi.org/10.1007/s10924-006-0040-5

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