PREPARATION OF POLYVINYLPYRROLIDONE MICRO SPHERES BY DISPERSION POLYMERIZATION

ZHAI Linfeng; SHI Tiejun; WANG Hualin

您当前的位置：

首页 >

文章列表页 >

PREPARATION OF POLYVINYLPYRROLIDONE MICRO SPHERES BY DISPERSION POLYMERIZATION

Research Article | 更新时间：2021-08-24

- PREPARATION OF POLYVINYLPYRROLIDONE MICRO SPHERES BY DISPERSION POLYMERIZATION
- Acta Polymerica Sinica Issue 11, Pages: 1022-1027(2007)
- 作者机构：
  
  1. 合肥工业大学化工学院
  2. 合肥工业大学化工学院,合肥,230009
- 作者简介：
- 基金信息：
- DOI：
  CLC： O631
- Published：2007，
扫描看全文
[1]翟林峰,史铁钧,王华林.分散聚合法制备PVP微球的研究[J].高分子学报,2007(11):1022-1027.

ZHAI Linfeng, SHI Tiejun, WANG Hualin. PREPARATION OF POLYVINYLPYRROLIDONE MICRO SPHERES BY DISPERSION POLYMERIZATION. [J]. Acta Polymerica Sinica (11):1022-1027(2007)
[1]翟林峰,史铁钧,王华林.分散聚合法制备PVP微球的研究[J].高分子学报,2007(11):1022-1027. DOI：

ZHAI Linfeng, SHI Tiejun, WANG Hualin. PREPARATION OF POLYVINYLPYRROLIDONE MICRO SPHERES BY DISPERSION POLYMERIZATION. [J]. Acta Polymerica Sinica (11):1022-1027(2007) DOI：

摘要

以N-乙烯基吡咯烷酮（NVP）为初始单体

乙酸乙酯为分散介质

采用分散聚合法制备了分散性能良好、粒径为3～4μm的聚乙烯基吡咯烷酮（PVP）微球.考察了单体、分散剂及引发剂浓度对PVP微球的粒径、单体转化率及分子量的影响

并对PVP的结构和性能进行研究.结果表明

单体浓度增加

PVP微球粒径和分子量增大

单体转化率升高;分散剂浓度增加

PVP微球粒径变小

分子量增大

单体转化率升高;引发剂浓度增加

PVP微球粒径变大

分子量减小

单体转化率升高.与溶液聚合法相比

分散聚合法制备的PVP分子量较小且具有一定的结晶性.

Abstract

This reports on the preparation of polyvinylpyrrolidone(PVP)micro spheres in ethyl acetate by dispersion polymerization with N-vinylpyrrolidone(NVP)as initial monomer

P(NVP-co-VAc)as dispersant

and AIBN as initiator.The influences of monomer concentration

dispersant concentration and initiator concentration on the size of PVP micro spheres as well as the monomer conversion rate were studied.The structure and properties of PVP micro spheres were analyzed.The results show that the prepared PVP micro spheres have a mean diameter of 3～4 μm.As the concentration of NVP increased

the micro sphere size and the molecular weight of the PVP increased and the monomer conversion rate also increased.As the concentration of P(NVP-co-VAc)increased

the size of micro spheres decreased

and the molecular weight of the PVP and the monomer conversion rate increased.As the concentration of AIBN increased

the size of micro spheres and the monomer conversion increased

the molecular weight of the PVP is also increased.The PVP prepared by dispersion polymerization has crystal structure and its molecular weight is low as compared to those prepared by solution polymerization.

关键词

聚乙烯基吡咯烷酮微球分散聚合制备

Keywords

PolyvinylpyrrolidoneMicrosphereDispersion polymerizationPreparation

references

更多指标>

Views

459

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

PREPARATION OF NARROW-DISPERSE POLY (STYRENE-co-n-BUTYL ACRYLATE) MICROSPHERES BY DISPERSION COPOLYMERIZATION

Progress in Preparation, Configuration, and Application of Composite Particles of Poly(N-isopropylacrylamide) and Gold Nanoparticles

One-pot Preparation of Block Copolymer Nanoparticles byPolymerization-induced Self-assembly

Preparation of Regular Polyethylene Hollow Spheres with Supported Z-N Catalysts

Research Progress in Preparation and Application of Bio-based 2,5-Furandicarboxylic Acid as Polyester Monomer

Related Author

No data

Related Institution

福州大学高分子科学与技术研究所

福州大学化学化工学院

College of Materials Science and Engineering, Beijing University of Chemical Technology

State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology

Department of Polymer Science and Engineering, Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang Univeristy

Postal code：100190
Tel：010-62588927 Email：gfzxb@iccas.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备05002797号-8 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰