以丙烯酰胺（AM）和丙烯酰氧乙基三甲基氯化铵（DAC）为单体,2,2’-偶氮二异丁基脒盐酸盐（V-50）为光敏引发剂,在紫外光照射下进行水溶液聚合,采用Fineman-Ross、Kelen-Tudos及Yezrielev-Brokhina-Roskin法计算了单体竞聚率,得出光敏引发条件下,AM和DAC的竞聚率分别为2.2784和0.3836。分析了单体组成、共聚物瞬时组成随转化率变化的关系及共聚物主链的序列长度分布,得出采用AM起始物质的量比为0.8且总转化率在80%以下的合成工艺条件,可得到组成相对均一的AM/DAC共聚物。运用差示扫描量热仪对共聚物结构进行分析表征,表明所得聚合物是AM/DAC共聚物。
The reactivity ratios of polymerization of acrylamide （AM） and 2-acryloyloxyethyl-trimethy- lammonium chloride （DAC） solution system with V-50 as photosensitizer were studied at certain condition under UV irradiation by the methods of Fineman-Ross, Kelen-Tudos and Yezrielev-Brokhina-Roskin. The results indicate that, the reactivity ratios of AM and DAC are 2. 2784 and 0. 3836 respectively at the condition of the photosensitive- initiation. The relations between molar ratio of monomers, instantaneous composition of copolymer with conversion and sequence-length distribution in the copolymers were analyzed. As a result, the technological condition of gaining relatively uniform AM/DAC copolymer is that the origination molar percentage of AM is 0.8 and the total conversion is under 80%. The copolymers were characterized by the differential scanning calorimetry. The results show that obtained polymer is copolymer of AM and DAC, not blends of two kinds of homopolymer.
参考文献
| [1] | 刘福胜,李志文,于世涛.甲基丙烯酰氧乙基三甲基氯化铵和丙烯酰胺的光辅助引发聚合[J].高分子材料科学与工程,2010(02):22-25. |
| [2] | 卢红霞,刘福胜,于世涛,王庆军,曹柯.阳离子聚丙烯酰胺P（AM-DMC）的合成与表征[J].高分子材料科学与工程,2008(04):46-49. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%