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首页> 外文期刊>Journal of Applied Polymer Science >A Novel Mucoadhesive Polymer Prepared By Template Polymerization of Acrylic Acid in the Presence of Poly (ethylene glycol)
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A Novel Mucoadhesive Polymer Prepared By Template Polymerization of Acrylic Acid in the Presence of Poly (ethylene glycol)

机译：聚乙二醇存在下丙烯酸模板聚合制备新型黏膜黏附聚合物

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摘要

A new mucoadhesive polymer was prepared by template polymerization of acrylic aicd in the presence of poly(ethylene glycol)(PEG).FTIR results indicated that a polymer complex was formed between poly(acrylic acid)(PAA) and PEG through hydrogen bonding. The hydrogen bonding in the PAA/PEG plymer complex was stronger than that in the PAA/PEG blend, and became stronger as the molecular weight of PEG increased. Glass transition temperatures (T_g) of PAA in the PAA/PEG polymer complexes was shifted to a lower temperarture than that of PAA in the PAA/PEG blend. However, they tended to become higher as the molecular weight of PEG increased. The dissolution rate of the PAA/PEG polymer complex was much slower thanthe PAA/PEG blend, and was dependent on pH and molecular weight of the PEG. The mucoadhesive force of the PAA/PEG polymer complexes was stronger than for the PAA/PEG blend or a commercial product, Carbopol 971P NF.
机译：聚乙二醇（PEG）存在下丙烯酸丙烯酸模板聚合制备了一种新的黏膜黏附聚合物。FTIR结果表明，聚丙烯酸（PAA）与聚乙二醇通过氢键形成了聚合物配合物。 PAA / PEG聚合物复合物中的氢键比PAA / PEG共混物中的氢键强，并且随着PEG分子量的增加而增强。与PAA / PEG共混物中的PAA相比，PAA / PEG聚合物复合物中的PAA的玻璃化转变温度（T_g）转变为更低的温度。但是，随着PEG分子量的增加，它们倾向于变得更高。 PAA / PEG聚合物复合物的溶解速率比PAA / PEG共混物慢得多，并且取决于pH和PEG的分子量。 PAA / PEG聚合物复合物的粘膜粘附力比PAA / PEG共混物或市售产品Carbopol 971P NF的粘膜粘附力强。

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