Double thermoresponsive block–random copolymers with adjustable phase transition temperatures: From block‐like to gradient‐like behavior

Eggers Steffen; Eckert Tilman; Abetz Volker

摘要

ABSTRACT > Stimuli‐responsive block–random copolymers are very useful “smart” materials as their switching behavior can be tuned by simply adjusting the composition of the random copolymer block. Because of that, we synthesized double thermoresponsive poly( N ‐acryloylpyrrolidine)‐ block ‐poly( N ‐acryloylpiperidine‐ co ‐ N ‐acryloylpyrrolidine) (PAPy‐ b ‐P(APi‐ co ‐APy)) copolymers via reversible addition fragmentation chain transfer (RAFT) polymerization and investigated their temperature‐induced self‐assembly in aqueous solution. By varying the APi/APy ratio in the random copolymer block, its phase transition temperature (PTT <sub>1</sub> ) can indeed be precisely adjusted while the temperature‐induced collapse upon heating leads to a fully reversible well‐defined micellization. By making the two blocks compositionally similar to more than 60%, the polymers' mechanistic thermoresponsiveness can furthermore be changed from block‐like to rather gradient‐like behavior. This means the micellization onset at PTT <sub>1</sub> and the corona collapse at the PTT of the more hydrophilic pure PAPy block (PTT <sub>2</sub> ) overlap resulting in one single broad transition. This work thus contributes to the detailed understanding of design, synthesis and mechanistic behavior of tailored “on‐demand” switchable materials. ? 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018 , 56 , 399–411 </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><abstract xmlns =“http://www.wiley.com/namespaces/wiley”type =“main”> <title type =“main”>抽象</ title> >刺激响应块 - 无规共聚物非常通过简单地调节随机共聚物块的组成，可以调整有用的“智能”材料作为其切换行为。因此，我们合成双热敏性聚（ N </ I> - 丙烯酰基吡咯烷） - 嵌段</ i> -poly（ n = -I> - 丙烯酰庚酯胺 - CO i> - n </ i> - 丙烯酰吡咯烷）（Papy- B </ i> -p（api- co </ i> -apy））共聚物通过</ i >可逆添加碎片链转移（筏）聚合并研究了水溶液中的温度诱导的自组装。通过改变随机共聚物嵌段中的API / APY比，可以确实可以精确地调节其相转变温度（PTT <SUB> 1 </ sub>），同时在加热时的温度诱导的坍塌导致完全可逆明确定义的胶束化时。通过使两个组成类似的块与超过60％类似，聚合物的机械热反应性也可以从块状更换为相当梯度的行为。这意味着PTT <sub> 1 </ sub>的胶束化发作，并且电晕坍塌在更亲水的纯pypapy块（Ptt <sub> 2 </ sub>）重叠的重叠中，导致一个单一的宽转换。因此，这项工作有助于详细了解定制的“按需”可切换材料的设计，合成和机械行为。还是2017 Wiley期刊，Inc.J.Colom。 SCI。，A部分：polym。化学。 2018 </ b>， 56 </ i>，399-411 </ p> </ abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-35621/'>《Journal of Polymer Science, Part A. Polymer Chemistry》</a> <b style="margin: 0 2px;">|</b><span>2018年第4期</span><b style="margin: 0 2px;">|</b><span>共13页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Eggers Steffen&option=202" target="_blank" rel="nofollow">Eggers Steffen;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Eckert Tilman&option=202" target="_blank" rel="nofollow">Eckert Tilman;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Abetz Volker&option=202" target="_blank" rel="nofollow">Abetz Volker;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Department of Physical ChemistryUniversity of Hamburg Grindelallee 117Hamburg 20146 Germany;</p> <p>Department of Physical ChemistryUniversity of Hamburg Grindelallee 117Hamburg 20146 Germany;</p> <p>Department of Physical ChemistryUniversity of Hamburg Grindelallee 117Hamburg 20146 Germany;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/1184.html" title="有机化学">有机化学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=block copolymers&option=203" rel="nofollow">block copolymers;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=dynamic light scattering&option=203" rel="nofollow">dynamic light scattering;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=micelles&option=203" rel="nofollow">micelles;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=reversible addition fragmentation chain transfer (RAFT)&option=203" rel="nofollow">reversible addition fragmentation chain transfer (RAFT);</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=stimuli‐sensitive polymers&option=203" rel="nofollow">stimuli‐sensitive polymers;</a> </p> <div class="translation"> 机译：嵌段共聚物;动态光散射;胶束;可逆添加碎片链转移（筏）;刺激敏感聚合物; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704020725990.html">Double thermoresponsive block–random copolymers with adjustable phase transition temperatures: From block‐like to gradient‐like behavior</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Eggers Steffen&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Eggers Steffen,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Eckert Tilman&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Eckert Tilman,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Abetz Volker&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Abetz Volker </a> <a href="/journal-foreign-35621/" target="_blank" rel="nofollow" class="tuijian_authcolor">Journal of Polymer Science, Part A. 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href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=张树范&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 张树范</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=宝净生&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,宝净生</a> <span> <a href="/journal-cn-9133/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 合成纤维工业 </a> </span> <span> . 1990</span><span>,第004期</span> </span> </div> </li> <li> <div> <b>6. </b><a class="enjiyixqcontent" href="/academic-conference-cn_meeting-22808_thesis/02022717153.html">具有可调通道的嵌段共聚物复合胶束</a> <b>[C]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=马如江&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 马如江</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=许艳玲&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,许艳玲</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=史林启&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,史林启</a> <span> <a href="/conference-cn-22808/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 中国化学会第13届反应性高分子（离子交换与吸附）学术研讨会 </a> <span> <span> . 2006</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020314697503.html">具有压缩DNA能力的双温敏性聚甜菜碱型ABA嵌段共聚物</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=代凤英&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 代凤英</a> <span> . 2008</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/06120107963392.html">使用其单体至少部分地不同于嵌段共聚物的各嵌段中存在的单体的统计或梯度共聚物将嵌段共聚物的纳米畴垂直取向的方法</a> <b>[P]</b> . <span> 中国专利： CN105492971A </span> <span> . 2016-04-13</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120105991301.html">具有不同异戊二烯和丁二烯中间嵌段的嵌段共聚物,其制备方法,和这种嵌段共聚物的用途</a> <b>[P]</b> . <span> 中国专利： CN101796130A </span> <span> . 2010-08-04</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130499771678.html">Diblock copolymer containing gradient random-copolymer block and method for forming fine pattern using diblock copolymer</a> <b>[P]</b> . <span> 外国专利：  KR20210040614A </span> <span> . 2021-04-14</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：二嵌段共聚物含有梯度随机共聚物嵌段及其使用二嵌段共聚物形成微观图案的方法 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130500578560.html">Diblock copolymer containing gradient random-copolymer block and method for forming fine pattern using diblock copolymer</a> <b>[P]</b> . <span> 外国专利：  KR102299644B1 </span> <span> . 2021-09-08</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：含有梯度随机共聚物嵌段的二嵌段共聚物及其使用二嵌段共聚物形成细图案的方法 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130410263639.html">Method for vertical alignment of block copolymers nanodomains using random or gradient copolymers of monomers that are at least partially different from the monomers present in each block of the block copolymer</a> <b>[P]</b> . <span> 外国专利：  JP6143955B2 </span> <span> . 2017-06-07</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：使用与嵌段共聚物的每个嵌段中存在的单体至少部分不同的单体的无规或梯度共聚物垂直嵌段共聚物纳米域的方法 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" 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