Cheng C.-C.Wang J.-H.Chuang W.-T.Liao Z.-S.Huang J.-J.Huang S.-Y.Fan W.-L.Lee D.-J.2019-05-142019-05-14201717599954https://scholars.lib.ntu.edu.tw/handle/123456789/408389Simple construction and manipulation of low-molecular-weight supramolecular polymers, based on incorporation of self-complementary multiple hydrogen bonding interactions, with the desired dynamic response characteristics to achieve high-efficiency supramolecular assembly and control the morphological properties of the polymers remain highly challenging. Herein, we developed a new difunctional telechelic supramolecular polymer (UrCy-PPG) containing self-complementary quadruple hydrogen-bonded ureido-cytosine (UrCy) moieties, which spontaneously self-assembles to form long-range-ordered lamellar structures in the bulk state. Scattering and rheological studies confirmed that the dynamic behavior of UrCy units induces structural phase transitions from quadruple to dual hydrogen-bonded arrays, leading to well-controlled, self-organized supramolecular nanostructure morphologies. The microstructural features could be easily tuned by altering environmental conditions, making the self-assembly processes highly efficient. Importantly, temperature/shear stress-dependent microstructural analyses indicated that UrCy-PPG has the capacity to manipulate the transition between contractile and fully extended lamellar structures. Given its novelty, simple synthesis, high reliability, and efficient self-assembly processes, this newly developed supramolecular polymer represents a new concept and pathway for controlled arrangement of self-assembled polymeric nanostructures. This journal is ? The Royal Society of Chemistry.journal article10.1039/c7py00684e2-s2.0-85019678109https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019678109&doi=10.1039%2fc7py00684e&partnerID=40&md5=fe52ba4f31df8f50457a32b5f2219ea7