丰满少妇被猛烈进入,精精国产XXXX视频在线播放,久久精品国产亚洲AV高清色欲,亚洲熟妇色自偷自拍另类

歡迎來北京東方德菲儀器有限公司!咨詢接觸角測量儀相關(guān)產(chǎn)品信息!
產(chǎn)品分類

Product classification

技術(shù)文章

Covalently closed microemulsions in presence of triblock terpolymers

更新日期:2009-05-04      瀏覽次數(shù):2677

Abstract:
This paper is focused on the influence of polystyrene (PS)–poly(1,4-butadiene) (PB)–poly(ethylene oxide) (PEO) triblock terpolymers on the w/o microemulsion of the pseudo-ternary system water/sodium dodecylsulfate (SDS)/xylene-pentanol. Despite the insolubility of the copolymer in
water as well as in the xylene–pentanol mixture, it can be incorporated into the w/o microemulsion and interactions between the triblock terpolymer molecules and the anionic surfactant headgroups can be detected by differential scanning calorimetry (DSC) measurements. Furthermore, dynamic
light scattering measurements were used to determine the aggregate diameter of the modified microemulsions. For lower polymer concentrations large aggregates between 100 and 500 nm can be observed. Surprisingly, at a higher terpolymer concentration of 5 wt%, significant smaller
aggregate diameters can be identified by dynamic light scattering and Cryo-SEM. One can conclude that the copolymers are incorporated in the inverse microemulsion droplets, where the PB blocks cover the water droplets. The thermally induced radical cross-linking of the butadiene units in the presence of azobisisobutyronitrile (AIBN) leads then to covalently closed nanocapsules with an average size of 10 nm.
Keywords:Triblock terpolymer; Microemulsion; Nanocapsules

Copyright © 2025 版權(quán)所有:北京東方德菲儀器有限公司  ICP備案號:京ICP備05028011號-3  管理登陸  技術(shù)支持:化工儀器網(wǎng)   總流量:329919  網(wǎng)站地圖

在線交流 聯(lián)系方式 二維碼

服務熱線

010-68920257

掃一掃,關(guān)注我們

丰满少妇被猛烈进入,精精国产XXXX视频在线播放,久久精品国产亚洲AV高清色欲,亚洲熟妇色自偷自拍另类 A级毛片100部免费看| 欧美 日韩 国产 成人 在线观看| 大陆熟妇丰满多毛XXXX | 亚洲另类激情综合偷自拍图| 国产美女自慰在线观看| 欧洲熟妇色 欧美| 麻豆妓女爽爽一区二区三| 成人免费毛片AAAAAA片| 欧美一区二区三区视频在线观看| 亚洲 欧美 叧类人妖| 亚洲AV成人噜噜无码网站| 亚洲AV日韩精品久久久久久久 | 强行交换配乱婬BD| 久久无码人妻精品一区二区三区| 色欲午夜无码久久久久久张津瑜| 免费观看又色又爽又黄的忠诚| 破了亲妺妺的处免费视频国产 | 又大又长粗又爽又黄少妇视频 | 鲁鲁狠狠狠7777一区二区 | 欲妇荡岳丰满少妇A片24小时 | 国产在线精品一区二区| 一本道无码在线| 国产成人亚洲综合A∨| 国产亲妺妺乱的性视频免费| 国产欧美一区二区精品久久久| 我和子发生了性关系视频| 男JI大巴进入女人的视频66M| 国产又爽又粗又猛的视频| 亚洲国产AV无码男人的天堂 | 欧洲-级毛片内射| 四虎MV最新地域网名怎么取| 又粗又大又黄A片免费看樱花| 国产中年熟女高潮大集合| 天天干天天射天天操| 色狠狠一区二区三区香蕉| 少妇人妻人伦A片| 免费国产又色又爽又黄的网站| 久久人妻无码一区二区| 国产精品久久人妻互换| 女人荫蒂被添全过程| 国产综合精品一区二区三区|