Structure and Properties of Starch/Polybutylene Succinate Blends Modified by Magnesium Chloride/1-Butyl-3-methylimidazolium Chloride†

doi:10.7503/cjcu20170588

Abstract

Abstract:

The starch/poly(butylene succinate)(PBS) blends were modified by magnesium chloride/1-butyl-3-methylimidazolium chloride([BMIM]Cl) compound plasticizing agent. The structure and performance of magnesium chloride/[BMIM]Cl modified starch/PBS blends were studied by Fourier transform infrared spectroscopy(FTIR), scanning electron microscopy(SEM), differential scanning calorimetry(DSC) analysis, X-ray diffraction(XRD) and mechanical properties test. The research results showed that magnesium chloride could form strong interaction with starch and PBS to destroy the original hydrogen bond, which leaded to the structure and properties of starch/PBS blends change. Compared with the [BMIM]Cl modified system, the magnesium chloride/[BMIM]Cl modified system could further enhance the interfacial adhesion of starch to PBS and improve the compatibility of the blends. The melting enthalpy, crystallinity and the crystallization temperature of starch/PBS were decreased, and the cold crystallization temperature were increased. The mechanical strength and elongation at break of the blends were improved and the strength reduction due to high efficiency plasticization of [BMIM]Cl was inhibited. The starch/PBS blends with good mechanical properties could be prepared by magnesium chloride/[BMIM]Cl modified system.

Key words: Poly(butylene succinate), Modified starch, Ionic liquid, Magnesium chloride

CLC Number:

O636
TQ321.2

TrendMD:

YANG Zhaojie, LEI Bei, DU Wenhao, ZHANG Xi. Structure and Properties of Starch/Polybutylene Succinate Blends Modified by Magnesium Chloride/1-Butyl-3-methylimidazolium Chloride^†[J]. Chem. J. Chinese Universities, 2018, 39(7): 1611.

Figures/Tables 6

Fig.1 FTIR spectra of [BMIM]Cl modified PBS/starch blends with various magnesium chloride content^a. TPS; b. TPSM1; c. TPSM2; d. TPSM3; e. TPSM4.

Fig.2 SEM images of starch/PBS without plasticizer(A), TPS(B), TSPM1(C) and TSPM4(D)

Fig.3 DSC curves of [BMIM]Cl modified starch/PBS blends with various magnesium chloride content^ (A) Melting process; (B) curve of crystallization. a. TPS; b. TPSM1; c. TPSM2; d. TPSM3; e. TPSM4.

Table 1 DSC data of [BMIM]Cl modified starch/PBS blends with various magnesium chloride content

Sample	ΔH_m/(J·g^-1)	X_c(%)	T_c /℃	T_cc/℃
TSP	28.63	47.59	64.22	88.33
TSPM1	25.07	42.05	62.18	89.01
TSPM2	24.43	41.34	61.40	89.68
TSPM3	23.03	39.32	60.36	90.13
TSPM4	21.97	37.84	59.19	91.71

Fig.4 XRD patterns of [BMIM]Cl modified starch/PBS blends with various magnesium chloride content^ a. TPS; b. TSPM1; c. TSPM4.

Table 2 Mechanical properties of [BMIM]Cl modified starch/PBS blends with various magnesium chloride content

Sample	Tensile strength/MPa	Elongation at break(%)
TSP	10.79	14.06
TSPM1	13.34	15.90
TSPM2	14.05	17.70
TSPM3	15.17	18.36
TSPM4	15.80	19.47

References 24

[1]	Zhang C. H., Zhao X., Huang J. T., Plastics, 2008, 37(3), 8—10
	(张昌辉, 赵霞, 黄继涛. 塑料, 2008, 37(3), 8—10)
[2]	Wang G.L., Xu J., Guo B. H.,Polymer Bulletin, 2011, (4), 99—109
	(王国利, 徐军, 郭宝华. 高分子通报, 2011, (4), 99—109)
[3]	Liu X. Y., Tu Z. G.,Zhao S. F. Plastics Science and Technology,2014, 42(4), 92—13
	(刘晓燕, 涂志刚, 赵素芳.塑料科技, 2014, 42(4), 92—13)
[4]	Liu J., Ji J. H., Zhang W., Wang X. W., Zhao J. New Chemical Materials,2013, 41(8), 1—3
	(刘军, 季君晖, 张维, 王小威, 赵剑.化工新型材料,2013, 41(8), 1—3)
[5]	Zhang W., Ji J.H., Zhao J., Wang X. W., Xu Y., Yang B., Wang L. P.,New Chemical Materials, 2010, (7), 1—5
	(张维, 季君晖, 赵剑, 王小威, 许颖, 杨冰, 王萍丽. 化工新型材料, 2010, (7), 1—5)
[6]	Averous L., Journal of Macromolecular Science,Part C: Polymer Reviews, 2004, 44(3), 231—274
[7]	Li J. W, Luo X. G., Lin X . Y.Starch, 2013, 65, 831—839
[8]	Wang X.L., Zhang Y. R., Wang Y. Z.Macromolecule Materials, 2011, (1), 24—37
	(汪秀丽, 张玉荣, 王玉忠. 高分子学报, 2011, (1), 24—37)
[9]	Shi Y. F., Chen L. S., Jeng R. J., Polymer, 2008, 49, 4602—4611
[10]	Zeng J. B., Jiao L., Li Y. D., Srinivasan M., Carbohydrate Polymer, 2011, 83, 762—768
[11]	Dean K., Yu L., Bateman S., Wu D. Y., Polymer, 2007, 103, 802—811
[12]	Boonprasith P., Wootthikanokkhan J., Nimitsiriwat N., Appl. Polym. Sci., 2013, 130(2), 1114—1123
[13]	Cui Y. S., Wang X. Q., Ning Z. Y. Chinese Plastics,2014, 28(8), 1—6
	(崔永生,王训遒,宁卓远. 中国塑料, 2014, 28(8), 1—6)
[14]	Lai S. M., Huang C. K., Shen H. F., Journal of Applied Polymer Science, 2005, 97(1), 257—264
[15]	Smits A. L. M., Kruiskamp P. H.,Van Soet J. J. G., Carbohydrate Polymers, 2003, 53(4), 409—416
[16]	Liu B., Lv Q., Fang R., Advanced Materials Research, 2011, 306/307, 1717—1721
[17]	Huang M., Yu J., Ma X., Polymer Degradation and Stability,2005, 90(3), 501—507
[18]	Xing X. ,Zhang X . Z., Zhang Y., Chinese Plastics, 2013, 27(7), 1—7
	(邢潇, 张须臻, 张勇. 中国塑料, 2013, 27(7), 1—7)
[19]	Xie F., Halley P. J., Avérous L., Progress in Polymer Science, 2012, 37(4), 595—623
[20]	Xie F., Pollet E., Halley P. J., Progress in Polymer Science, 2013, 38, 1590—1628
[21]	Lei B., Luo H., Shi M. K., Zhang X., Chem. J. Chinese Universities, 2016, 37(9), 1722—1727
	(雷蓓, 罗辉, 石孟可, 张熙.高等学校化学学报,2016, 37(9), 1722—1727)
[22]	Jiang X. C., Li H. M., Luo Y., International Journal of Biological Macromolecules, 2016, 82, 223—230
[23]	Liu G. M., Zheng L. C., Zhang X. Q., Li C. C., Macromolecules, 2012, 45, 5487—5493
[24]	Zeng J. B., Li Y. D., Zhu Q. Y., Yang K. K., Wang X. L., Wang Y. Z., Polymer, 2009, 50, 1178—1186