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Sulfonated copolymers with SO3H and COOH groups for the hydrolysis of polysaccharides
Li, Xiutao; Jiang, Yijun; Shuai, Li; Wang, Lili; Meng, Lingqian; Mu, Xindong
2012
发表期刊JOURNAL OF MATERIALS CHEMISTRY
卷号22期号:4页码:1283-1289
摘要

The well-defined sulfonated block copolymer poly(acrylic acid)-block-poly(styrene sulfonic acid) (PAA-b-PSSH) and the random copolymer poly(acrylic acid)-random-poly(styrene sulfonic acid) (PAA-r-PSSH) were prepared by directthermolysis of the precursor copolymers poly(tert-butyl acrylate)-block-poly(neopentyl styrenesulfonate) (PtBA-b-PNSS) and poly(tert-butyl acrylate)-random-poly(neopentyl styrenesulfonate) (PtBA-r-PNSS), which were synthesized by living radical polymerization (MWD < 1.10) catalyzed with CuBr. GPC , EA , 1H NMR and FT-IR spectra were employed to characterize the structure of the synthesized acid polymers . The catalytic performance of the acidpolymers was evaluated for the hydrolysis of starch and cellulose in aqueous solution under microwave irradiation. With the same effective acid concentration, the random copolymer PAA-r-PSSH gave the highest glucose yield among the prepared catalysts . It is believed that the good results were caused by the synergic effect of the SO3H and COOH groups in the polymer chain. In addition, microwave irradiation led to better glucose yields in the hydrolysis ofpolysaccharides than the conventional heating method with acid polymers as catalysts .

; The well-defined sulfonated block copolymer poly(acrylic acid)-block-poly(styrene sulfonic acid) (PAA-b-PSSH) and the random copolymer poly(acrylic acid)-random-poly(styrene sulfonic acid) (PAA-r-PSSH) were prepared by direct thermolysis of the precursor copolymers poly(tert-butyl acrylate)-block-poly(neopentyl styrenesulfonate) (PtBA-b-PNSS) and poly(tert-butyl acrylate)random-poly(neopentyl styrenesulfonate) (PtBA-r-PNSS), which were synthesized by living radical polymerization (MWD < 1.10) catalyzed with CuBr. GPC, EA, H-1 NMR and FT-IR spectra were employed to characterize the structure of the synthesized acid polymers. The catalytic performance of the acid polymers was evaluated for the hydrolysis of starch and cellulose in aqueous solution under microwave irradiation. With the same effective acid concentration, the random copolymer PAA-r-PSSH gave the highest glucose yield among the prepared catalysts. It is believed that the good results were caused by the synergic effect of the SO3H and COOH groups in the polymer chain. In addition, microwave irradiation led to better glucose yields in the hydrolysis of polysaccharides than the conventional heating method with acid polymers as catalysts.
文章类型Article
学科领域绿色化学催化
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1039/c1jm12954f
关键词[WOS]CARBON BEARING SO3H ; BLOCK-COPOLYMERS ; OH GROUPS ; MEMBRANES ; CELLULOSE ; POLYMER ; ACID)
收录类别SCI
语种英语
WOS研究方向Chemistry ; Materials Science
WOS类目Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号WOS:000298878100008
引用统计
被引频次:49[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/1395
专题绿色化学催化研究组
作者单位Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Shandong, Peoples R China
推荐引用方式
GB/T 7714
Li, Xiutao,Jiang, Yijun,Shuai, Li,et al. Sulfonated copolymers with SO3H and COOH groups for the hydrolysis of polysaccharides[J]. JOURNAL OF MATERIALS CHEMISTRY,2012,22(4):1283-1289.
APA Li, Xiutao,Jiang, Yijun,Shuai, Li,Wang, Lili,Meng, Lingqian,&Mu, Xindong.(2012).Sulfonated copolymers with SO3H and COOH groups for the hydrolysis of polysaccharides.JOURNAL OF MATERIALS CHEMISTRY,22(4),1283-1289.
MLA Li, Xiutao,et al."Sulfonated copolymers with SO3H and COOH groups for the hydrolysis of polysaccharides".JOURNAL OF MATERIALS CHEMISTRY 22.4(2012):1283-1289.
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