Abstract Within this work, well-defined polystyrene-block-poly(2-hydroxyethyl methacrylate) (PS-b-PHEMA) and a non-polar model block copolymer (BCP) polystyrene-block-polybutadiene (PS-b-PB) have been prepared via sequential anionic polymerization and investigated with respect to their capability of microphase separation in the presence of cellulose fibres. Both the original morphologies in the bulk state as well as the microphase-separated structures in the vicinity of cellulose fibres were investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and small-angle X-ray scattering (SAXS) measurements. BCP series featuring molar masses below 70 kg mol−1 and higher molar masses up to 201 kg mol−1 have been subjected to solvent-casting and subsequent thermal annealing to elucidate the microstructures in the presence or absence of cellulose fibres with defined contents of water. Besides the classical morphologies comprising spheres, cylinders and lamellae, also gyroidal and helical-domains were observed. Moreover, a significant impact on the degree of domain order and orientation was found for the PHEMA-containing BCPs based on the hydroxyl moiety interactions of the cellulose fibres and respective PHEMA block segments.

中文翻译：

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纤维素纤维附近含两亲性聚（2-羟乙基甲基丙烯酸酯）嵌段共聚物的自组装

摘要 在这项工作中，定义明确的聚苯乙烯-嵌段-聚（2-羟乙基甲基丙烯酸酯）（PS-b-PHEMA）和一种非极性模型嵌段共聚物（BCP）聚苯乙烯-嵌段-聚丁二烯（PS-b-PB）具有通过连续阴离子聚合制备，并研究了它们在纤维素纤维存在下的微相分离能力。通过扫描电子显微镜 (SEM)、透射电子显微镜 (TEM) 和小角 X 射线散射 (SAXS) 测量研究了本体状态的原始形态以及纤维素纤维附近的微相分离结构. BCP 系列具有低于 70 kg mol-1 的摩尔质量和高达 201 kg mol-1 的更高摩尔质量，经过溶剂浇铸和随后的热退火，以阐明存在或不存在具有确定水含量的纤维素纤维时的微观结构. 除了包括球体、圆柱体和薄片的经典形态外，还观察到了回旋域和螺旋域。此外，基于纤维素纤维和各自 PHEMA 嵌段链段的羟基部分相互作用，发现含 PHEMA 的 BCP 对域顺序和取向的程度有显着影响。