Novel Sustainable chemical recycling of green polymers using environmentally benign catalytic process
使用环境友好的催化过程对绿色聚合物进行新型可持续化学回收
基本信息
- 批准号:15350095
- 负责人:
- 金额:$ 9.54万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:2003
- 资助国家:日本
- 起止时间:2003 至 2005
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In this study, sustainable chemical recycling of biodegradable poly(lactic acid) and bio-based polymers, which were produced from renewable resources, were developed using environmentally benign catalysts, such as enzymes and solid acids. Also, enzyme-catalyzed synthesis and chemical recycling of biopolythioesters were also studied. Summaries of the results are as follows.(1)Transformation of bio-based polymers into repolymerizable cyclic oligomersEnzyme-catalyzed cyclic oligomerization of poly(butylene adipate) was studied with respect to the basic reaction parameters. It was found that in certain organic solvents cyclic oligomerization was quickly occurred by lipase. The affinities toward lipase as well as the molecular weight of the repolymerization products were significantly influenced by the cyclic oligomer size.(2)Developing of novel chemical recycling of poly(L-lactic acid) using solid acidIt was found that poly(L-lactic acid) was efficiently degraded into oligomers by montmorillonite. The obtained lactic acid oligomer was readily repolymerized by solid state polymerization to regenerate the polylactic acid with a molecular weight of greater than 100,000. Based on these results, sustainable chemical recycling of bio-based polymers was proposed.(3)Novel enzymatic synthesis and properties of polythioestersIt was first found that mercaptocarboxylic acid was readily polymerized by enzyme to produce polythioester with a molecular weight of several ten thousands. Thus produced polythioester showed a higher melting temperature and resistance against organic solvents comparing to those of the corresponding polyoxyesters. Also, a series of polythioesters were produced by the polycondensation of alkanedithiol with alkanedicarobxylic acid, and their chemical recycling was established using an enzyme.
在这项研究中,可持续的化学回收的可生物降解的聚(乳酸)和生物基聚合物,这是从可再生资源中产生的,使用环境友好的催化剂,如酶和固体酸。此外,还对生物聚硫酯的酶催化合成和化学回收进行了研究。结果总结如下。(1)生物基聚合物向可再聚合环状齐聚物的转化研究了酶催化下聚己二酸丁二醇酯的环状齐聚反应。结果表明,在一定的有机溶剂中,脂肪酶能快速地进行环化齐聚反应。对脂肪酶的亲和力以及重聚合产物的分子量显着影响的环状低聚物的大小。(2)利用固体酸对聚L-乳酸进行化学回收的新方法研究发现,蒙脱土可以有效地将聚L-乳酸降解为低聚物。所得乳酸低聚物通过固态聚合容易地再聚合以再生分子量大于100,000的聚乳酸。基于这些结果,提出了生物基聚合物的可持续化学回收。(3)聚硫酯的新型酶促合成及性质首次发现巯基羧酸在酶作用下容易聚合生成分子量为数万的聚硫酯。与相应的聚氧酯相比,由此产生的聚硫酯显示出更高的熔融温度和对有机溶剂的耐受性。此外,一系列的聚硫酯的烷二硫醇与烷二羧酸的缩聚反应,并建立了使用酶的化学回收。
项目成果
期刊论文数量(77)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
固体酸を用いるポリ乳酸のケミカルリサイクル
利用固体酸化学回收聚乳酸
- DOI:
- 发表时间:2005
- 期刊:
- 影响因子:0
- 作者:C.Yang;G.Fukuhara;A.Nakamura;Y.Origane;K.Fujita;D.-O.Yuan;T.Mori;T.Wada;Y.Inoue;松村秀一
- 通讯作者:松村秀一
Synthesis and Chemical Recycling of Poly(carbonate-urethane)
聚碳酸酯-聚氨酯的合成及化学回收
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:Y.Soeda
- 通讯作者:Y.Soeda
最新ポリウレタン材料と応用技術 ポリウレタン創成への道
最新聚氨酯材料及应用技术 聚氨酯创造之路
- DOI:
- 发表时间:2005
- 期刊:
- 影响因子:0
- 作者:S.Matsumura;Y.Osanai;Y.Soeda;Y.Suzuki;K.Toshima;S.Matsumura;松村秀一
- 通讯作者:松村秀一
S.Okajima, R.Kondo, K.Toshima, S.Matsumura: "Lipase-Catalyzed Transformation of Poly(butylene adipate) and Poly(butylene succinate) into Repolymerizable Cyclic Oligomers"Biomacromolecules. 4・6. 196-203 (2003)
S.Okajima、R.Kondo、K.Toshima、S.Matsumura:“脂肪酶催化聚己二酸丁二醇酯和聚丁二酸丁二醇酯转化为可再聚合的环状低聚物”196-203(2003)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Preparation of aliphatic poly(thioester) by the lipase-catalyzed direct polycondensation of 11-mercaptoundecanoic acid
- DOI:10.1021/bm050168i
- 发表时间:2005-07-01
- 期刊:
- 影响因子:6.2
- 作者:Kato, M;Toshima, K;Matsumura, S
- 通讯作者:Matsumura, S
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{{ truncateString('MATSUMURA Shuichi', 18)}}的其他基金
A study on the new expected functions of architectural professions and building industries in the field of renovation
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24560736 - 财政年份:2012
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22570087 - 财政年份:2010
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A Study on the Oral History of Prefabricated House-Building Systems Development in Japan
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22656128 - 财政年份:2010
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$ 9.54万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
A Study on Integrated Renovation to Improve Existing Buildings' Use and Seismic Performance
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- 批准号:
21246091 - 财政年份:2009
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$ 9.54万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Renovation Techniques and Social Systems for Revitalization of Downtown Districts in Local Cities by Effective Use of Existing Buildings
有效利用现有建筑振兴地方城市中心城区的改造技术和社会制度
- 批准号:
18360282 - 财政年份:2006
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$ 9.54万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Creation of environmentally benign green surfactant
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- 批准号:
18350079 - 财政年份:2006
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$ 9.54万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Study on the Support and Infill Industry that deals with a new Life Style
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- 批准号:
15360317 - 财政年份:2003
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$ 9.54万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
RESEARCH ON SUSTAINABILITY OF HOUSING DISTRICT
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12450240 - 财政年份:2000
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$ 9.54万 - 项目类别:
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Synthesis of polyester using enzyme-catalyzed polymerization
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11217212 - 财政年份:1999
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$ 9.54万 - 项目类别:
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Development research on rehabilitation methods of multi-family swellings constructed during the mass-housing period
集体住宅时期建造的多户住宅的修复方法发展研究
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09555182 - 财政年份:1997
- 资助金额:
$ 9.54万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
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