本研究描述了一种经济且可扩展的方法,该方法可从通过在环状酸酐上二聚脂肪酸基α,ω-聚酯二醇(PES)的亲核加成,并将羧基端基转化为铵盐。使用烯基琥珀酸酐(ASA)引入新颖的两亲性头基。额外的末端疏水性侧链有利于将不同分子量的聚合物BA自组装成纳米级各向异性物体,它们的形状和有序向列相或层状相的排列取决于ASA链的长度和结构均匀性。制备了基于C15(氢化双酚A,HBA)和C8(1,4-环己烷二甲醇,CHDM)间隔基的相应二酯,并使用SAXS研究了所得BA在水中的自组装,21 H-NMR和光学偏振显微镜。尽管刚性C8间隔基阻止任何有序性,但ASA封端的C15倾向于在相图的扩展区域上形成有序的水凝胶,类似于网格相和Lα / L 3多态性。流变学和模拟结果证实存在弹性响应的双连续形态和类似互连的网状相的偏置多孔组件。使用基于二聚脂肪酸的间隔基以及使用ASA头基,都可以大规模应用有序液体(或水凝胶)作为例如薄膜,涂料和粘合剂的配方基础。
Synthetic Mono-Rhamnolipids Display Direct Antifungal Effects and Trigger an Innate Immune Response in Tomato against Botrytis Cinerea
作者:Mathilde Robineau、Sarah Le Guenic、Lisa Sanchez、Ludovic Chaveriat、Vincent Lequart、Nicolas Joly、Maryline Calonne、Cédric Jacquard、Stéphane Declerck、Patrick Martin、Stephan Dorey、Essaid Ait Barka
DOI:10.3390/molecules25143108
日期:——
work, we synthetized new synthetic mono-rhamnolipids (smRLs) consisting in a rhamnose connected to a simple acyl chain and differing by the nature of the link and the length of the lipid tail. We then investigated the effects of these ether, ester, carbamate or succinate smRL derivatives on Botrytis cinerea development, symptoms spreading on tomato leaves and immuneresponses in tomato plants. Our results
天然鼠李糖脂是潜在的生物防治剂,可用于保护植物免受细菌和真菌病害。在这项工作中,我们合成了新的合成单鼠李糖脂 (smRLs),其中包含连接到简单酰基链的鼠李糖,其不同之处在于链接的性质和脂质尾的长度。然后,我们研究了这些醚、酯、氨基甲酸酯或琥珀酸酯 smRL 衍生物对灰霉病菌发育、番茄叶片上蔓延的症状和番茄植株免疫反应的影响。我们的结果表明,合成 smRL 能够在番茄中触发早期和晚期免疫相关的植物防御反应,并在受控条件下增加植物对 B. cinerea 的抗性。
안정성이 개선된 신규 유사세라마이드 화합물 및 이를 포함하는 조성물
申请人:Aekyung Industrial Co., Ltd. 애경산업(주)(119980027233) Corp. No ▼ 110111-0398275BRN ▼113-81-11573
公开号:KR101878491B1
公开(公告)日:2018-07-13
본 발명은 신규 유사세라마이드 화합물에 관한 것으로, 보다 구체적으로 하기 화학식 1로 표현되는 피부 보습 및 장벽기능회복 특성을 갖는 신규 유사세라마이드 화합물 및 이를 포함하는 피부 외용제 조성물을 제공한다. [화학식 1]
ALKENYL SUCCINIMIDES AND USE AS NATURAL GAS HYDRATE INHIBITORS
申请人:Ecolab USA Inc.
公开号:US20200131429A1
公开(公告)日:2020-04-30
Disclosed are succinimide-based compounds used in compositions and methods for inhibiting natural gas hydrate agglomerates. The succinimide-based compounds are reaction products of an alkenyl succinic anhydride and an amine or amine alcohol.
Nonionic glycasuccinimide surfactants and a process for their manufacture
申请人:Lever Brothers Company, Division of Conopco, Inc.
公开号:US05631389A1
公开(公告)日:1997-05-20
The present invention relates to a new class of carbohydrate based nonionic surfactant, i.e., alkyl and alkenyl glycasuccinimide, and a process for their manufacture.