Catalytic grafting of cellulose fibers with polycaprolactone by tetrabutyl titanate

LI Yunzu, YANG Yiqin, YANG Qinwu, GU Lihui, WANG Zhiguo

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2015, Vol. 39 ›› Issue (03) : 113-118.

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南京林业大学学报（自然科学版）
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JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2015, Vol. 39 ›› Issue (03) : 113-118. DOI: 10.3969/j.issn.1000-2006.2015.03.021

Catalytic grafting of cellulose fibers with polycaprolactone by tetrabutyl titanate

  • LI Yunzu, YANG Yiqin*, YANG Qinwu, GU Lihui, WANG Zhiguo
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Abstract

Cellulose polycaprolactone was prepared by grafting of cotton linter pulp with caprolactone(CL)catalyzed by Ti(O-n-Bu)4 via ring-opening polymerization. Effects of reaction temperature, reaction time, Ti(O-n-Bu)4 amount, and caprolactone(CL)on monomer conversion and graft rate were investigated through single factor experiments and orthogonal test. The results showed that the significance sequence of the factors affecting the grafting rate was reaction temperature, mass ratio of CL to cellulose, and reaction time. The optimal reaction conditions were as follows: the amount of catalyst was 2%(PCL theory degree of polymerization was 37), the mass ratio of CL to cellulose was 30, and the graft polymerization was carried out at 130 ℃for 25 h. At aforesaid conditions, conversion of CL reached 97.46% and graft rate of cellulose was 70.44%. Structure and properties were characterized by FTIR, 1H-NMR, XRD. The FTIR result confirmed cellulose has been grafted with PCL. The 1H-NMR analysis showed that most of the CL had transformed into PCL, and the calculated CL conversion according to 1H-NMR was consistent with the result of weight measurement method. The XRD results showed that cellulose crystalline structure in cellulose-PCL has decreased, instead crystalline characteristic peaks of PCL was appeared.

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LI Yunzu, YANG Yiqin, YANG Qinwu, GU Lihui, WANG Zhiguo. Catalytic grafting of cellulose fibers with polycaprolactone by tetrabutyl titanate[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2015, 39(03): 113-118 https://doi.org/10.3969/j.issn.1000-2006.2015.03.021

References

[1] 张元琴, 黄勇. 以纤维素材料为基质的生物降解材料的研究进展[J]. 高分子材料科学与工程, 1999, 15(5): 25-29.Zhang Y Q, Huang Y. The research progress of biodegradable materials with cellulose as the matrix[J].Polymer Materials Science & Engineering, 1999, 15(5): 25-29.
[2] Rosa D, Guedes C, Bardi M. Evaluation of thermal, mechanical and morphological properties of PCL/CA and PCL/CA/PE-g-GMA blends[J]. Polymer Testing, 2007, 26(2): 209-215.
[3] 李兰艳. 酶催化两亲嵌段共聚物的合成及其纳米胶束的研究[D]. 广东: 华南理工大学, 2010.Li L Y. Enzyme catalytic synthesis of amphiphilic block copolymer and the research of nanomicelle [D]. Guangdong: South China University of Technology, 2010.
[4] Carlmark A, Larsson E, Malmström E. Grafting of cellulose by ring-opening polymerisation—A review[J]. European Polymer Journal, 2012, 48:1646-1659.
[5] 王艳钗, 武荣瑞, 张天骄, 等. 钛系催化剂对聚酯缩聚反应速度和热稳定性影响的研究[J]. 聚酯工业, 2003,16(2):23-26.Wang Y C, Wu R R, Zhang T J, et al. Study on the effect of titanic catalysts on reaction rate of polyester and the thermal stability [J]. Journal of Polyester Industry, 2003, 16(2):23-26.
[6] 庄志良, 吴伟兵, 谷军, 等. 微晶纤维素ARGET ATRP接枝共聚制备PMMA和PMAA-Na的研究[J]. 南京林业大学学报: 自然科学版, 2014, 38(1): 125-129.Zhuang Z L, Wu W B, Gu J, et al. Research on ARGET ATRP for grafting of microcrystalline cellulose to synthesize PMMA and PMAA-Na[J]. Journal of Nanjing Forestry University:Natural Sciences Edition, 2014, 38(1): 125-129.
[7] Bledzki A K, Fink H P,Specht K. Unidirectional hemp and flax EP-and PP-composites: Influence of defined fiber treatments[J]. Journal of Applied Polymer Science, 2004, 93(5): 2150-2156.
[8] Lönnberg H, Larsson K, Lindström T, et al. Synthesis of polycaprolactone-grafted microfibrillated cellulose for use in novel bionanocomposites influence of the graft length on the mechanical properties[J]. Applied Materials & Interfaces, 2011,3(5):1426-1433.
[9] Boujemaoui A, Carlsson L, Malmström E, et al. Facile preparation route for nanostructured composites: surface-Initiated ring-opening polymerization of ε-caprolactone from high-surface-area nanopaper[J]. ACS Applied Materials & Interfaces, 2012,4(6): 3191-3198.
[10] 宋强, 杨益琴. 纤维素月桂酸酯的制备及其结构和性能表征[J]. 南京林业大学学报:自然科学版, 2011, 35(4):91-95.Song Q, Yang Y Q. Preparation of cellulose laurate and characterization of its structure and performance[J]. Journal of Nanjing Forestry University:Natural Sciences Edition,2011, 35(4):91-95.
[11] 周艳丹, 杨益琴, 王志国. 棉浆粕月桂酸酯的制备及其吸附有机废水污染物的研究[J]. 纤维科学与技术, 2014, 22(1): 5-11.Zhou Y D, Yang Y Q, Wang Z G. Preparation of linter pulp laurates and its adsorption of organic wastewater[J]. Journal of Cellulose Science and Technology, 2014, 22(1): 5-11.
[12] 吴冰, 沈健, 李会鹏, 等. HPWA/SBA-15催化合成对叔丁基苯酚[J]. 工业催化, 2008, 16(2): 41-44.Wu B, Shen J, Li H P, et al. HPWA/SBA-15 Catalytic Synthesis of tert-butyl phenol[J]. Industrial Catalysis, 2008, 16(2): 41-44.
[13] Lönnberg H, Fogelström L, Samir M, et al. Surface grafting of microfibrillated cellulose with poly(ε-caprolactone)-synthesis and characterization[J]. European Polymer Journal, 2008, 44(9): 2991-2997.
[14] 邓冰锋, 黄从树, 叶章基, 等. 己内酯的开环聚合与应用研究[J]. 材料开发与应用, 2012, 27(6): 72-77.Deng B F, Huang C S, Ye Z J, et al. Caprolactone ring-opening polymerization and applied research[J]. Development and Application of Materials, 2012, 27(6): 72-77.
[15] 蒋青锋, 陈志良, 陈建海, 等. 聚己内酯理化性质的研究[J]. 中国医院药学杂志, 2006, 26(3):261-264.Jiang Q F, Chen Z L, Chen J H, et al. Research on the physicochemical properties of polycaprolactone[J]. Chinese Journal of Hospital Pharmacy, 2006, 26(3): 261-264.
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