CN109134758B - 一种壳聚糖羧甲基纤维素钠接枝中空球及其制备方法 - Google Patents
一种壳聚糖羧甲基纤维素钠接枝中空球及其制备方法 Download PDFInfo
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- 229920001661 Chitosan Polymers 0.000 title claims abstract description 27
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000001768 carboxy methyl cellulose Substances 0.000 title claims abstract description 25
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 title claims abstract description 25
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 22
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003999 initiator Substances 0.000 claims abstract description 10
- 239000000178 monomer Substances 0.000 claims abstract description 7
- AOSFMYBATFLTAQ-UHFFFAOYSA-N 1-amino-3-(benzimidazol-1-yl)propan-2-ol Chemical compound C1=CC=C2N(CC(O)CN)C=NC2=C1 AOSFMYBATFLTAQ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims abstract description 6
- GQOKIYDTHHZSCJ-UHFFFAOYSA-M dimethyl-bis(prop-2-enyl)azanium;chloride Chemical compound [Cl-].C=CC[N+](C)(C)CC=C GQOKIYDTHHZSCJ-UHFFFAOYSA-M 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims 2
- PQLVXDKIJBQVDF-UHFFFAOYSA-N acetic acid;hydrate Chemical group O.CC(O)=O PQLVXDKIJBQVDF-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 5
- 239000000243 solution Substances 0.000 description 18
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- 239000004005 microsphere Substances 0.000 description 8
- 239000002253 acid Substances 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 6
- 239000004793 Polystyrene Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 229920002223 polystyrene Polymers 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 239000011246 composite particle Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000002775 capsule Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000012377 drug delivery Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
- C08F251/02—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof on to cellulose or derivatives thereof
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
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- Graft Or Block Polymers (AREA)
- Manufacturing Of Micro-Capsules (AREA)
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Abstract
本发明涉及一种壳聚糖羧甲基纤维素钠接枝中空球及其制备方法,它采用一定浓度和配比的壳聚糖和羧甲基纤维素钠溶液混合,并加入二甲基二烯丙基氯化铵作为接枝单体以及过硫酸铵和亚硫酸氢铵作为引发剂,在恒温55℃条件下,经快速和慢速搅拌反应一定时间,可得直径在6~18mm之间的壳聚糖羧甲基纤维素钠接枝中空球。该方法工艺简单,无需模板粒子,制备得到的中空球结构稳定。
Description
技术领域
本发明涉及一种壳聚糖羧甲基纤维素钠接枝中空球及其制备方法,属于高分子材料技术领域。
背景技术
中空球,尤其是中空微球,具有类似细胞膜的双层膜结构特性,在药物的封装与靶向释放、工业催化、污染物的去除和化妆品等领域有广泛的应用。前人制备中空球主要的方法是在可以被溶解、分解或氧化的基体表面交替沉积电荷相反的电解质,实现多层吸附沉淀,当吸附沉淀到所需要的层数后,将模板粒子除去,即可得到纳米级或微米级中空结构的微球(Mercato L,et al. 2014. Biological applications of LbL multilayercapsules: from drug delivery to sensing. Advances in Colloid and InterfaceScience 207, 139-154)。李云兴等也公开了一种单分散壳聚糖中空微球的制备方法,其方法是搅拌下将聚苯乙烯微球分散液加入到壳聚糖有机酸水溶液中,再加入交联剂,即得聚苯乙烯/壳聚糖复合粒子;将聚苯乙烯/壳聚糖复合粒子加入到特定的有机溶剂中移除聚苯乙烯模板微球,最终获得壳聚糖中空微球(CN102658072A)。前人的研究主要集中在微纳米尺度的中空微球制备,用于制备毫米尺度的中空球则比较困难。而且无论单一材料还是复合材料,都需要先制备模板粒子,操作步骤繁杂,制备周期长,质量难以控制。另外由电荷相反的电解质形成的中空球其结构不稳定,在复杂的使用过程中由于介质pH的变化或其它反应性物质的存在下,易发生解离和化学反应,从而破坏其中空结构,因此将两种电解质进行接枝共聚,形成更稳定的多元共聚物则可以克服此缺点。
发明内容
本发明的主要设想是不采用模板粒子,并利用引入单体接枝将壳聚糖和羧甲基纤维素钠共聚的方法制备毫米尺度的中空球。
本发明中的壳聚糖羧甲基纤维素钠接枝中空球的制备方法具体如下所述(以下所述溶液的浓度均为质量体积浓度,单位g/ml)。
(1) 配制1.0%的壳聚糖酸性溶液50ml,酸性溶液为1.0%的醋酸水溶液。
(2) 配制浓度为1.0~1.5%的羧甲基纤维素钠水溶液100ml。
(3) 称取引发剂过硫酸铵和亚硫酸氢铵各0.025g, 溶于25ml 水中。
(4) 将羧甲基纤维素钠溶液和壳聚糖酸性溶液混合,再加入一定质量的二甲基二烯丙基氯化铵作为接枝单体。
(5)加入上述步骤(3)配制的引发剂溶液,温度控制在55℃,先快速搅拌3分钟,然后慢速搅拌2~4小时,可得直径在6~18mm之间的中空球。
本发明制得的壳聚糖羧甲基纤维素钠接枝中空球为白色半透明中空球,直径在6~18mm之间。该制备方法工艺简单,无需采用模板粒子,制备得到的中空球结构稳定。
具体实施方式
下面结合具体实施例,对本发明内容作进一步的说明,但本发明的实现方式并不局限于此。
实施例1:配制50ml的醋酸水溶液,称取0.5g重均分子量为10万的壳聚糖,搅拌溶解,静置12小时。称取1.0g羧甲基纤维素钠,配制100 ml的1.0%的羧甲基纤维素钠溶液。称取引发剂过硫酸铵和亚硫酸氢铵各0.025g, 溶于25ml 水中。将羧甲基纤维素钠溶液和壳聚糖酸性溶液混合,再加入质量为1.5g的二甲基二烯丙基氯化铵作为接枝单体。在55℃的恒温水浴中,加入引发剂溶液,先快速搅拌3分钟,搅拌速度为300转/分,然后慢速搅拌2小时,搅拌速度为30转/分,即可得直径在6~18mm的中空球。
实施例2:配制50ml的醋酸水溶液,称取0.5g重均分子量为20万的壳聚糖,搅拌溶解,静置12小时。称取1.25g羧甲基纤维素钠,配制100 ml的1.25%的羧甲基纤维素钠溶液,称取引发剂过硫酸铵和亚硫酸氢铵各0.025g, 溶于25ml 水中。将羧甲基纤维素钠溶液和壳聚糖酸性溶液混合,再加入质量为1g的二甲基二烯丙基氯化铵作为接枝单体。在55℃的恒温水浴中,加入引发剂溶液,先快速搅拌3分钟,搅拌速度为450转/分,然后慢速搅拌4小时,搅拌速度为45转/分,即可得直径在6~18mm的中空球。
实施例3:配制50ml的醋酸水溶液,称取0.5g重均分子量为10万的壳聚糖,搅拌溶解,静置12小时。称取1.5g羧甲基纤维素钠,配制100 ml的1.5%的羧甲基纤维素钠溶液,称取引发剂过硫酸铵和亚硫酸氢铵各0.025g, 溶于25ml 水中。将羧甲基纤维素钠溶液和壳聚糖酸性溶液混合,再加入质量为2g的二甲基二烯丙基氯化铵作为接枝单体。在55℃的恒温水浴中,加入引发剂溶液,先快速搅拌3分钟,搅拌速度为360转/分,然后慢速搅拌3小时,搅拌速度为60转/分,即可得直径在6~18mm的中空球。
Claims (1)
1.一种壳聚糖羧甲基纤维素钠接枝中空球的制备方法,其特征在于,包括以下步骤:它采用一定浓度和配比的壳聚糖和羧甲基纤维素钠溶液混合,其中壳聚糖质量体积浓度为1.0%,溶剂为质量体积浓度1.0%的醋酸水溶液,羧甲基纤维素钠溶液的质量体积浓度在1.0~1.5%之间,溶剂为水,壳聚糖和羧甲基纤维素钠溶液的体积比为1:2,并加入二甲基二烯丙基氯化铵作为接枝单体以及过硫酸铵和亚硫酸氢铵作为引发剂,在恒温条件下,经快速搅拌3分钟,搅拌速度在300~450转/分之间,慢速搅拌2~4小时,搅拌速度在30~60转/分之间,反应制得直径在6~18mm之间的壳聚糖羧甲基纤维素钠接枝中空球。
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Citations (4)
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WO1999037706A1 (fr) * | 1998-01-26 | 1999-07-29 | Kureha Kagaku Kogyo K.K. | Microspheres expansibles et leur procede de production |
CN102658072A (zh) * | 2012-05-22 | 2012-09-12 | 江南大学 | 单分散壳聚糖中空微球的制备方法 |
CN104562230A (zh) * | 2014-12-29 | 2015-04-29 | 北京化工大学常州先进材料研究院 | 羧甲基纤维素钠和壳聚糖复合纳米纤维及其制备方法 |
CN106543366A (zh) * | 2016-10-11 | 2017-03-29 | 北京石大万嘉新材料科技有限公司 | 一种提高石油采收率用颗粒型聚合物及其制备方法 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999037706A1 (fr) * | 1998-01-26 | 1999-07-29 | Kureha Kagaku Kogyo K.K. | Microspheres expansibles et leur procede de production |
CN102658072A (zh) * | 2012-05-22 | 2012-09-12 | 江南大学 | 单分散壳聚糖中空微球的制备方法 |
CN104562230A (zh) * | 2014-12-29 | 2015-04-29 | 北京化工大学常州先进材料研究院 | 羧甲基纤维素钠和壳聚糖复合纳米纤维及其制备方法 |
CN106543366A (zh) * | 2016-10-11 | 2017-03-29 | 北京石大万嘉新材料科技有限公司 | 一种提高石油采收率用颗粒型聚合物及其制备方法 |
Non-Patent Citations (3)
Title |
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壳聚糖/羧甲基纤维素钠多层复合载药微囊的制备及其体外释药性能初探;莫名月等;《广东化工》;20090525(第05期);全文 * |
纤维素基磁性微胶囊的制备及其优化条件研究;崔萌等;《吉林化工学院学报》;20141115(第11期);全文 * |
羧甲基纤维素-壳聚糖水凝胶球的制备及性能;补朝阳;《化学研究》;20111125(第06期);65-67 * |
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