私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

相關(guān)鏈接
聯(lián)系方式
  • 通信地址:陜西省西安市長安南路199號 陜西師范大學(xué) 化學(xué)化工學(xué)院 079信箱
  • 郵編:710062
  • 電話:029-81530828
  • 傳真:
  • Email:yangpeng@snnu.edu.cn
當(dāng)前位置:> 首頁 > 論文著作 > 正文
Copolymerization of divinyl ether and maleic anhydride via charge transfer complex
作者:Zhao HC, Deng JP, Yang P, Liu LY, Yang, WT
關(guān)鍵字:maleic Anhydride(MAn); 1,4-Cyclohexanedimethanol Divinyl Ether(CHDDVE); charge transfer complex(CTC); alternating copolymerization
論文來源:期刊
具體來源:ADVANCED MATERIALS RESEARCH
發(fā)表時間:2006年

Copolymerization of MAn and CHDDVE was conducted by using azobisisobutyronitrile (AIBN) or benzoyl peroxide (BPO) as the initiator, ethyl acetate (EA) or n-butyl acetate (BA) as the solvent, and n-hexane as the precipitator. Effects of several factors on monomer conversion were studied, such as reaction time, reaction temperature, composition of the monomer feed (MAn/CHDDVE) and initiator concentration. Molecular weight and its polydispersity and polymer material morphology were characterized by gel permeation chromatography (GPC) and transmission electron microscope (TEM) technologies, respectively. It was demonstrated that CTC was formed in MAn/CHDDVE system, based on ultraviolet-visible spectroscopy (UV-vis) analysis. The product was alternating copolymer with high crosslinking degree, so it could not be dissolved in common solvents, e.g. water, chloroform, N, N-dimethyl formamide (DMF), tetrahydrofuran (THF) and acetone (Ac).

主站蜘蛛池模板: 民乐县| 乌什县| 石台县| 广饶县| 清涧县| 二连浩特市| 金门县| 凤凰县| 富源县| 柳河县| 新乡县| 惠东县| 琼结县| 日喀则市| 闻喜县| 鸡东县| 江山市| 洪江市| 东源县| 宜州市| 广水市| 潮州市| 罗源县| 颍上县| 贵溪市| 靖州| 银川市| 德钦县| 渝北区| 秭归县| 明溪县| 互助| 潞西市| 桂林市| 梨树县| 济南市| 榆树市| 石景山区| 永兴县| 南宁市| 启东市|