Novel dendrimers for papermaking applications

职务名称：用于造纸应用的新型树枝状大分子具有可定制的内部和表面结构的树枝状大分子为设计与造纸悬浮液相互作用的新型材料提供了极好的机会。Kakkar教授的小组开发了一种简单的合成方法，可以构建各种球形和哑铃形树枝状聚合物。合成是灵活的，使用自适应模板核心，并允许建立几代之间没有分离的步骤，使过程简单和成本效益。这些树枝状聚合物在其外围含有羟基，可用于容易地用包括羧基、胺、磺酸盐、醛等的实体官能化这些树枝状聚合物。这使我们能够定制设计具有所需特性的这些树枝状聚合物。建议将这些树枝状聚合物应用于造纸悬浮液，作为双组分助留剂体系的一部分或作为增强剂。这些助留剂的效率、成形过程中的滤水和手抄纸的强度（湿纸幅、湿强度和干强度）将由许多技术决定，包括货车de Ven教授开发的新技术。加拿大的潜在利益是在加拿大纸浆和造纸工业中引入新的产品线，包括定制的树枝状聚合物和高度支化的聚合物。加拿大公司将首先成为实施这项赠款所产生的任何新技术的目标，使他们比竞争对手更具竞争优势。

Title: Novel dendrimers for papermaking applications.Dendritic macromolecules with tailorable internal and surface structure offer excellent opportunities in designing novel materials for interactions with papermaking suspensions. Professor Kakkar's group has developed a simple synthetic methodology that allows the construction of a variety of globular and dumb-bell shaped dendrimers. The synthesis is flexible using an adaptive template core, and has allowed the build-up of several generations without separation steps in between, making the process easy and cost-effective. These dendrimers contain hydroxyl groups at their periphery that can be used to readily functionalize these dendrimers with entities including carboxyl, amine, sulfonate, aldehyde etc. This allows us to custom design these dendrimers with desired properties. It is proposed to apply these dendrimers to papermaking suspensions, either as part of a dual component retention aid system or as strength agents. The efficiency of such retention aids, the drainage during forming and the strength (wet web, wet and dry strength) of hand sheets will be determined by a number of techniques, including new ones developed by Prof, van de Ven.The potential benefits for Canada are the introduction of a new product lines in the Canadian Pulp and Paper Industry, consisting of tailor-made dendrimers and highly branched polymers. Canadian companies will be targeted first to implement any new technology arising from this grant, giving them a competitive edge over competitors.