文献类型：期刊文献

中文题名：细乳液聚合制备歧化松香-丙烯酸酯复合高分子乳液工艺的研究

英文题名：STUDY ON PREPARATION OF DISPROPORTIONATED-ROSIN/ACRYLATE HYBRID LATEX BY MINIEMULSION POLYMERIZATION

作者：林明涛[1] 王基夫[1] 储富祥[1] 庞久寅[1] 王春鹏[1]

第一作者：林明涛

机构：[1]中国林业科学研究院林产化学工业研究所

年份：2005

卷号：25

期号：B10

起止页码：47-50

中文期刊名：林产化学与工业

外文期刊名：Chemistry & Industry of Forest Products

收录：CSTPCD;;EI(收录号：2005479497738);Scopus(收录号：2-s2.0-27744567944);CSCD:【CSCD_E2011_2012】；

基金：国家杰出青年科学基金资助项目(30325031)

语种：中文

中文关键词：细乳液聚合;松香;丙烯酸酯;复合高分子

外文关键词：miniemulsion polymerization;rosin;acrylate;hybrid polymer

分类号：TQ433

摘要：通过细乳液聚合方法成功制备了歧化松香-丙烯酸酯复合高分子乳液。考察了聚 合过程中水溶性引发剂用量、乳化剂用量、引发剂种类、歧化松香含量等对单体转化率和聚合 物粒子粒径变化的影响。实验结果表明:引发剂或乳化剂的用量增加可以提高单体的转化速 率;引发剂水溶性的降低可以更好地控制聚合过程中的粒径变化;歧化松香含量的增加降低了聚合速率,但对 单体的最终转化率影响不大。力学性能分析显示歧化松香在杂合物中起到了增塑剂的作用。降低了聚合物的 玻璃化转变温度,使得断裂应力下降而断裂伸长率有所增长。
Composite latex particles of disproportionated-rosin （DPR） and polyacrylates were synthesized by miniemulsion polymerization. The influences of dosage of initiator, surfactant and DPR, and the type of initiator on polymerization were studied by monitoring the conversion of monomer and variation of particle size. It was found that polymerization rate was increased with the increased dosage of initiator or surfactant; Particle size of miniemulsion was kept relatively stable during polymerization when an initiator of lower solubility was used; An increase in dosage of DPR reduced polymerization rate, but showed no significant impact on the final monomer conversion. It was also demonstrated that rosin in hybrid polymer functioned as a plasticizer to reduce glass transition temperature, which resulted in the reduction of strength and increase of elongation of polymer films.