CN104624133A - 一种核壳结构聚苯胺聚电解质碳酸钙微球复合材料制备方法 - Google Patents

一种核壳结构聚苯胺聚电解质碳酸钙微球复合材料制备方法 Download PDF

Info

Publication number
CN104624133A
CN104624133A CN201410744297.2A CN201410744297A CN104624133A CN 104624133 A CN104624133 A CN 104624133A CN 201410744297 A CN201410744297 A CN 201410744297A CN 104624133 A CN104624133 A CN 104624133A
Authority
CN
China
Prior art keywords
polyelectrolyte
calcium carbonate
polyaniline
preparation
pes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410744297.2A
Other languages
English (en)
Inventor
周勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201410744297.2A priority Critical patent/CN104624133A/zh
Publication of CN104624133A publication Critical patent/CN104624133A/zh
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02Making microcapsules or microballoons
    • B01J13/06Making microcapsules or microballoons by phase separation
    • B01J13/14Polymerisation; cross-linking
    • B01J13/18In situ polymerisation with all reactants being present in the same phase
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28Electrolytic cell components
    • G01N27/30Electrodes, e.g. test electrodes; Half-cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Electrochemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

一种核壳结构聚苯胺聚电解质碳酸钙微球复合材料制备方法,属于导电材料制备领域。提供一种具有良好导电性的核壳结构聚苯胺聚电解质碳酸钙微球复合材料制备方法。所述方法通过碳酸钙-聚电解质微球的制备和聚苯胺-聚电解质-碳酸钙微球的制备两步骤,在包裹了聚电解质的碳酸钙微球上原位聚合苯胺,形成导电性良好的聚苯胺-聚电解质-碳酸钙微球。该复合材料制备简单、重现性良好,可以构建测定多巴胺的传感器,线性范围0.5~10.0mmol/L,检测限0.2mmol/L(3S/N)。

Description

一种核壳结构聚苯胺聚电解质碳酸钙微球复合材料制备方法
技术领域
本发明属于导电材料制备领域。
背景技术
将导电聚合物膜包裹在纳米或微米球的外部可以提高聚合物膜的有效面积,从而提高材料的导电性。聚苯胺(PAN)具有导电性高、易于制备和环境稳定性好等优点,在生物传感领域得到了广泛的应用。近来已有报道由SiO2和聚苯乙烯出发,制备了聚苯胺-二氧化硅和聚苯胺-聚苯乙烯核壳结构的纳米复合物。碳酸钙(CaCO3)具有高的比表面积、优良的生物相容性及在水溶液中分散性好等优点。在CaCO3的3种晶体结构(方解石、霰石和球霰石)中,球霰石结构CaCO3在工业、医药、微胶囊制备和生物传感器领域有广泛的应用潜能。但它在水溶液中不可逆地转变成结构稳定的方解石结构的CaCO3,这一缺陷严重地影响了CaCO3的应用。目前已有提高CaCO3在水中稳定性的报道,利用金纳米粒子和量子点CdTe稳定CaCO3的球霰石结构,并将其用于生物传感器的制备。但尚未见有关制备导电聚合物/CaCO3微球复合材料并将其应用于传感器领域的报道。
发明内容
本发明的目的是提供一种具有良好导电性的核壳结构聚苯胺聚电解质碳酸钙微球复合材料制备方法。
本发明通过以下技术方案予以实现:一种核壳结构聚苯胺聚电解质碳酸钙微球复合材料制备方法,包括碳酸钙-聚电解质微球的制备和聚苯胺-聚电解质-碳酸钙微球的制备两步骤;
所述碳酸钙-聚电解质微球的制备步骤为,将0.1gCaC03微球分散到10mL壳聚糖溶液(质量分数为0.5%)中,搅拌15min,离心除去过量的壳聚糖,水洗3次,按相同的方法组装聚苯乙烯磺酸钠(PSS),如此交替组装壳聚糖和PSS,直至得到所需的聚电解质层数,产物用聚电解质-碳酸钙((PEs)n/CaCO3)表示;
所述聚苯胺-聚电解质-碳酸钙微球的制备步骤为,将上述制备的(PEs)n/CaC03微球直接分散到10mL二次水中,超声分散3min,迅速加入0.02mL苯胺(AN)单体,搅拌0.5h,正电荷的AN吸附在负电荷的(PEs)n/CaCO3微球上,缓缓加入1mL0.2mol/L的K2S208溶液,AN单体在(PEs)n/CaCO3微球上原位聚合形成聚苯胺,离心分离,沉淀用二次水清洗3次,在50℃干燥24h,得到聚苯胺-聚电解质-碳酸钙微球复合材料(PAN/(PEs)n/CaCO3)。
所述碳酸钙-聚电解质微球的制备步骤中,组装第一层聚电解质时,先将母核的分散液超声分散10s。
本发明具有如下有益效果:
制备的CaCO3微球平均直径为(4.0±0.5)μm,该复合材料有良好的电催化活性,将其滴涂在玻碳电极E,制得的修饰电极对多巴胺氧化显示较强的催化能力,与碳酸钙修饰电极相比,其氧化峰电位负移了130mV,平行制作5支修饰电极测定4.0mmol/L多巴胺,相对标准偏差为4.2%,该复合材料制备简单、重现性良好,可以构建测定多巴胺的传感器,线性范围0.5~10.0mmol/L,检测限0.2mmol/L(3S/N)。
具体实施方式
下面结合具体实施例对本发明做进一步说明。
具体实施例:本发明所述制备过程包括碳酸钙-聚电解质微球的制备和聚苯胺-聚电解质-碳酸钙微球的制备两步骤;
所述碳酸钙-聚电解质微球的制备步骤为,将0.1gCaC03微球分散到10mL壳聚糖溶液(质量分数为0.5%)中,搅拌15min,离心除去过量的壳聚糖,水洗3次,按相同的方法组装聚苯乙烯磺酸钠(PSS),如此交替组装壳聚糖和PSS,直至得到所需的聚电解质层数,产物用聚电解质-碳酸钙((PEs)n/CaCO3)表示;本实施例所用的电解质层数n=6,为了防止母核团聚,组装第一层聚电解质时,先将母核的分散液超声分散10s;
所述聚苯胺-聚电解质-碳酸钙微球的制备步骤为,将上述制备的(PEs)6/CaC03微球直接分散到10mL二次水中,超声分散3min,迅速加入0.02mL苯胺(AN)单体,搅拌0.5h,正电荷的AN吸附在负电荷的(PEs)6/CaCO3微球上,缓缓加入1mL0.2mol/L的K2S208溶液,AN单体在(PEs)6/CaCO3微球上原位聚合形成聚苯胺,离心分离,沉淀用二次水清洗3次,在50℃干燥24h,得到聚苯胺-聚电解质-碳酸钙微球复合材料(PAN/(PEs)6/CaCO3)
用金相砂纸抛光玻碳电极(GCE),用二氧化铈研磨料打磨成镜面,再依次用体积比为1:1的硝酸和无水乙醇的水溶液进行超声清洗(每次约3min)。取出电极用二次水冲洗干净,在室温下干燥备用。将上述由0.1gCaC03和0.02mLAN(摩尔比为5:1)制备的PAN/(PEs)6/CaCO3微球分散到2mL水中,超声分散3min。然后取lOμL分散液滴涂到洁净的玻碳电极表面,室温下干燥,获得修饰电极。
在三电极系统(铂丝电极为对电极,饱和甘汞电极为参比电极,玻碳电极或修饰电极为工作电极)进行生物电分析,PAN/(PEs)6/CaCO3修饰电极对2.0mmol/L多巴胺溶液的催化电流约为18μA,而CaCO3修饰电极约为8μA,且修饰电极的催化氧化电流和多巴胺溶液浓度(在0.50~10.0mmol/L范围内呈线性关系,线性回归方程:ip(μA)=3.516+10.364C(mmol/L),线性关系数r=0.9993,检测限为0.2mmol/L(3S/N)),平行制作5支修饰电极测定4.0mmol/L多巴胺,相对标准偏差为4.2%,可用于多巴胺传感器。
以上内容是结合具体的实施方式对本发明所做的进一步详细说明,不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干简单推演或替换,都应当视为属于本发明的保护范围。

Claims (2)

1.一种核壳结构聚苯胺聚电解质碳酸钙微球复合材料制备方法,其特征在于:包括碳酸钙-聚电解质微球的制备和聚苯胺-聚电解质-碳酸钙微球的制备两步骤;
所述碳酸钙-聚电解质微球的制备步骤为,将0.1gCaC03微球分散到10mL壳聚糖溶液(质量分数为0.5%)中,搅拌15min,离心除去过量的壳聚糖,水洗3次,按相同的方法组装聚苯乙烯磺酸钠(PSS),如此交替组装壳聚糖和PSS,直至得到所需的聚电解质层数,产物用聚电解质-碳酸钙((PEs)n/CaCO3)表示;
所述聚苯胺-聚电解质-碳酸钙微球的制备步骤为,将上述制备的(PEs)n/CaC03微球直接分散到10mL二次水中,超声分散3min,迅速加入0.02mL苯胺(AN)单体,搅拌0.5h,正电荷的AN吸附在负电荷的(PEs)n/CaCO3微球上,缓缓加入1mL0.2mol/L的K2S208溶液,AN单体在(PEs)n/CaCO3微球上原位聚合形成聚苯胺,离心分离,沉淀用二次水清洗3次,在50℃干燥24h,得到聚苯胺-聚电解质-碳酸钙微球复合材料(PAN/(PEs)n/CaCO3)。
2.如权利要求1所述的核壳结构聚苯胺聚电解质碳酸钙微球复合材料制备方法,其特征在于:所述碳酸钙-聚电解质微球的制备步骤中,组装第一层聚电解质时,先将母核的分散液超声分散10s。
CN201410744297.2A 2014-12-09 2014-12-09 一种核壳结构聚苯胺聚电解质碳酸钙微球复合材料制备方法 Pending CN104624133A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410744297.2A CN104624133A (zh) 2014-12-09 2014-12-09 一种核壳结构聚苯胺聚电解质碳酸钙微球复合材料制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410744297.2A CN104624133A (zh) 2014-12-09 2014-12-09 一种核壳结构聚苯胺聚电解质碳酸钙微球复合材料制备方法

Publications (1)

Publication Number Publication Date
CN104624133A true CN104624133A (zh) 2015-05-20

Family

ID=53203657

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410744297.2A Pending CN104624133A (zh) 2014-12-09 2014-12-09 一种核壳结构聚苯胺聚电解质碳酸钙微球复合材料制备方法

Country Status (1)

Country Link
CN (1) CN104624133A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104931651A (zh) * 2015-05-27 2015-09-23 东华大学 一种多氨基材料掺杂的甲醛气体敏感膜
CN107375217A (zh) * 2017-06-26 2017-11-24 华侨大学 一种碳酸钙‑(聚鸟氨酸/岩藻聚糖)4自组装载体及制备方法
CN110433742A (zh) * 2019-09-11 2019-11-12 成都工业学院 一种双层包覆结构的微胶囊制备方法及其制备的微胶囊

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104931651A (zh) * 2015-05-27 2015-09-23 东华大学 一种多氨基材料掺杂的甲醛气体敏感膜
CN104931651B (zh) * 2015-05-27 2016-11-09 东华大学 一种多氨基材料掺杂的甲醛气体敏感膜
CN107375217A (zh) * 2017-06-26 2017-11-24 华侨大学 一种碳酸钙‑(聚鸟氨酸/岩藻聚糖)4自组装载体及制备方法
CN110433742A (zh) * 2019-09-11 2019-11-12 成都工业学院 一种双层包覆结构的微胶囊制备方法及其制备的微胶囊

Similar Documents

Publication Publication Date Title
Hu et al. Ion-selective electrodes with colloid-imprinted mesoporous carbon as solid contact
Promphet et al. An electrochemical sensor based on graphene/polyaniline/polystyrene nanoporous fibers modified electrode for simultaneous determination of lead and cadmium
Qu et al. Sensitive amperometric biosensor for phenolic compounds based on graphene–silk peptide/tyrosinase composite nanointerface
Han et al. Development of tyrosinase biosensor based on quantum dots/chitosan nanocomposite for detection of phenolic compounds
Huang et al. Electrochemical behavior and voltammetric determination of tryptophan based on 4-aminobenzoic acid polymer film modified glassy carbon electrode
Tong et al. Electrochemical cholesterol sensor based on carbon nanotube@ molecularly imprinted polymer modified ceramic carbon electrode
Liu et al. A solid-contact Pb2+-selective electrode based on electrospun polyaniline microfibers film as ion-to-electron transducer
Li et al. Electrochemiluminescence sensor based on partial sulfonation of polystyrene with carbon nanotubes
CN104391030B (zh) 一种基于海藻酸功能化石墨烯构建的重金属离子Cd2+、Pb2+和Cu2+的传感器的制备方法及应用
Li et al. Electrochemical biosensor for sensitively simultaneous determination of dopamine, uric acid, guanine, and adenine based on poly-melamine and nano Ag hybridized film-modified electrode
Wang et al. Simultaneous determination of acetaminophen, theophylline and caffeine using a glassy carbon disk electrode modified with a composite consisting of poly (Alizarin Violet 3B), multiwalled carbon nanotubes and graphene
CN103344689B (zh) 基于Fe3O4-AuNPs磁性复合纳米粒子固定化乙酰胆碱酯酶的磁性电极、制备及应用
Zhang et al. Sensitive detection of uric acid on partially electro-reduced graphene oxide modified electrodes
CN103387564A (zh) 基于离子液体-氧化石墨烯敏感膜的酚类电化学传感器
CN104624133A (zh) 一种核壳结构聚苯胺聚电解质碳酸钙微球复合材料制备方法
CN104730132A (zh) 一种石墨烯修饰电极、制备及其对辛硫磷的快速检测
Kong et al. Electrochemical investigation and determination of procaterol hydrochloride on poly (glutamic acid)/carboxyl functionalized multiwalled carbon nanotubes/polyvinyl alcohol modified glassy carbon electrode
CN101576530B (zh) 利用石墨纳米片/Nafion复合薄膜修饰电极测定多巴胺的方法
Wu et al. Sodium dodecyl sulfate doping PEDOT to enhance the performance of neural microelectrode
CN105572188B (zh) (PANI/RGO)n/Hemin修饰电极及其对过氧化氢的电化学检测方法
Norouzi et al. Determination of rutin in pharmaceutical formulations using admittance biosensor based on dna and nano composite film using coulometric fft admittance voltammetry
CN107991364A (zh) 一种固态离子选择性电极及其制备和应用
CN109916976A (zh) 锗酸锌纳米棒修饰的功能化石墨烯复合材料的制备方法及其应用
CN105136884B (zh) 基于碳纳米管/聚乙烯吡咯烷酮的薄膜式湿敏传感器
CN104237343B (zh) 二氧化锆/多孔聚苯胺修饰电极的制备方法及其应用

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150520