欢迎登录材料期刊网

材料期刊网

高级检索

采用直接乳化法制备聚碳酸亚丙酯(PPC)乳液,研究乳化剂亲水亲油平衡(HLB)值、连续相聚乙烯醇(PVA)浓度对乳液性能的影响.研究表明,当乳化剂HLB值在12.6~ 16.0之间时,均可制得PPC乳液.PVA质量分数高于1%则会导致PPC乳液稳定性下降.当乳化剂HLB值为13.0时,乳液白色泛蓝光,电导率为96.2 μS/cm,固含量为3.73%,5000 r/min下离心10 min既无沉淀也无分层产生,静置半月无明显变化,粒径分布曲线分别在2 μm和30 μm处有2个独立的峰.

参考文献

[1] Baozhong Li;Jiayan Yu;Jaehwon Jung .Amidolysis of some biodegradable polymers[J].Polymer Degradation and Stability,1999(1):161-163.
[2] Du LC.;Meng YZ.;Wang SJ.;Tjong SC. .Synthesis and degradation behavior of poly(propylene carbonate) derived from carbon dioxide and propylene oxide[J].Journal of Applied Polymer Science,2004(3):1840-1846.
[3] 杜隆超,孟跃中,王拴紧,张世震.由二氧化碳和环氧丙烷生成的聚碳酸亚丙酯的合成与降解行为[J].中山大学学报(自然科学版),2003(z1):5-10.
[4] Liu, Y.;Peng, D.;Huang, K.;Liu, S.;Liu, Z. .Preparation and properties of poly(propylene carbonate maleate) microcapsules for controlled release of pazufloxacin mesilate[J].Journal of Applied Polymer Science,2011(5):3248-3254.
[5] 卢凌彬,黄可龙,肖寒.咖啡因对聚[碳酸(亚丙酯-co-γ-丁内酯)酯]降解性能的影响[J].化学通报(印刷版),2006(02):104-108.
[6] Orafidiya LaraO;Oladimeji FA .Determination of the required HLB values of some essential oils.[J].International Journal of Pharmaceutics,2002(1/2):241-249.
[7] 刘英杰,张丽叶.小檗碱聚乳酸微球的制备工艺及特性研究[J].北京化工大学学报(自然科学版),2008(04):52-55.
[8] Song KC;Lee HS;Choung Y;Cho KI;Ahn Y;Choi EJ .The effect of type of organic phase solvents on the particle size of poly(D,L-lactide-co-glycolide) nanoparticles[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2006(1/3):162-167.
[9] Chern CS.;Chen YC. .STABILITY OF THE POLYMERIZABLE SURFACTANT STABILIZED LATEX PARTICLES DURING SEMIBATCH EMULSION POLYMERIZATION[J].Colloid and polymer science,1997(2):124-130.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%